---
tool: Crawlinx SEO audit
source: https://crawlinx.com
domain: e3dc.com
report_url: "https://crawlinx.com/audit/e3dc.com"
crawl_id: 20260721T075445-673ef54f
health_score: 64
generated_at: 2026-08-26T17:26:57Z
total_pages: 50
html_pages: 50
indexable_pages: 49
errors: 2
warnings: 188
notices: 552
---

# SEO audit: e3dc.com

**Health score: 64/100** — needs attention

> Audited by [Crawlinx](https://crawlinx.com) — the free technical-SEO crawler. Full report: https://crawlinx.com/audit/e3dc.com

## Overview

| Metric | Value |
| --- | --- |
| Pages crawled | 50 |
| HTML pages | 50 |
| Indexable | 49 |
| Non-indexable | 0 |
| Orphan pages | 0 |
| Broken internal links | 0 |
| Avg response time | 986 ms |
| Errors / Warnings / Notices | 2 / 188 / 552 |
| Status codes | 49×200, 1×404 |

## Categories

| Category | Score | Errors | Warnings | Notices |
| --- | ---: | ---: | ---: | ---: |
| Crawlability | 98 | 1 | 0 | 2 |
| Sitemap | 98 | 1 | 0 | 0 |
| Agent Readiness | 71 | 0 | 49 | 37 |
| Performance | 71 | 0 | 49 | 224 |
| Duplicate | 80 | 0 | 33 | 2 |
| Meta Description | 86 | 0 | 24 | 7 |
| Structured Data | 89 | 0 | 19 | 49 |
| Titles | 95 | 0 | 8 | 0 |
| Links | 97 | 0 | 5 | 6 |
| Headings | 99 | 0 | 1 | 0 |
| Content | 100 | 0 | 0 | 48 |
| Images | 100 | 0 | 0 | 50 |
| Security | 100 | 0 | 0 | 99 |
| Social | 100 | 0 | 0 | 27 |
| URL | 100 | 0 | 0 | 1 |

## Issues

### Errors (2)

#### Non-200 URL listed in sitemap

- Rule: `sitemap.not_200` · Category: Sitemap · Occurrences: 1

- [https://www.e3dc.com/deutschland-kfw-441/](https://www.e3dc.com/deutschland-kfw-441/) — listed in sitemap but status 404

#### Client error (4xx) response

- Rule: `status.4xx` · Category: Crawlability · Occurrences: 1

- [https://www.e3dc.com/deutschland-kfw-441/](https://www.e3dc.com/deutschland-kfw-441/) — HTTP 404

### Warnings (188)

#### Control has no accessible name

- Rule: `agent.control_no_name` · Category: Agent Readiness · Occurrences: 49

- [https://www.e3dc.com/](https://www.e3dc.com/) — 29 button/link(s) with no text or aria-label — an agent can't target them
- [https://www.e3dc.com/andreas-piepenbrink-die-photovoltaik-bietet-mehr/](https://www.e3dc.com/andreas-piepenbrink-die-photovoltaik-bietet-mehr/) — 11 button/link(s) with no text or aria-label — an agent can't target them
- [https://www.e3dc.com/ausgezeichnete-speichertechnologie-e3-dc-ist-best-of-german-industry/](https://www.e3dc.com/ausgezeichnete-speichertechnologie-e3-dc-ist-best-of-german-industry/) — 8 button/link(s) with no text or aria-label — an agent can't target them
- [https://www.e3dc.com/batteriespeicher-fuer-pv-anlage/](https://www.e3dc.com/batteriespeicher-fuer-pv-anlage/) — 8 button/link(s) with no text or aria-label — an agent can't target them
- [https://www.e3dc.com/batterietechnik-fuer-stromspeicher/](https://www.e3dc.com/batterietechnik-fuer-stromspeicher/) — 8 button/link(s) with no text or aria-label — an agent can't target them
- [https://www.e3dc.com/ch/trilink-technologie-fuer-mehrfamilienhaeuser/](https://www.e3dc.com/ch/trilink-technologie-fuer-mehrfamilienhaeuser/) — 11 button/link(s) with no text or aria-label — an agent can't target them
- [https://www.e3dc.com/co2-freies-heizen-e3-dc-macht-sg-ready-zum-standard/](https://www.e3dc.com/co2-freies-heizen-e3-dc-macht-sg-ready-zum-standard/) — 8 button/link(s) with no text or aria-label — an agent can't target them
- [https://www.e3dc.com/den-standard-fuer-klimaneutrale-gebaeude-gesetzt/](https://www.e3dc.com/den-standard-fuer-klimaneutrale-gebaeude-gesetzt/) — 12 button/link(s) with no text or aria-label — an agent can't target them
- [https://www.e3dc.com/der-neue-quattroporte-von-e3-dc/](https://www.e3dc.com/der-neue-quattroporte-von-e3-dc/) — 11 button/link(s) with no text or aria-label — an agent can't target them
- [https://www.e3dc.com/deutschland-kfw-442/](https://www.e3dc.com/deutschland-kfw-442/) — 8 button/link(s) with no text or aria-label — an agent can't target them
- [https://www.e3dc.com/dynamische-strompreise-mit-e3-dc-maximal-autark-und-transparent/](https://www.e3dc.com/dynamische-strompreise-mit-e3-dc-maximal-autark-und-transparent/) — 11 button/link(s) with no text or aria-label — an agent can't target them
- [https://www.e3dc.com/e3-dc-integriert-ostroms-dynamischen-stromtarif/](https://www.e3dc.com/e3-dc-integriert-ostroms-dynamischen-stromtarif/) — 11 button/link(s) with no text or aria-label — an agent can't target them
- [https://www.e3dc.com/e3-dc-ist-offizieller-teampartner-der-deutschen-ski-nationalmannschaft-alpin/](https://www.e3dc.com/e3-dc-ist-offizieller-teampartner-der-deutschen-ski-nationalmannschaft-alpin/) — 11 button/link(s) with no text or aria-label — an agent can't target them
- [https://www.e3dc.com/e3-dc-nutzt-intelligente-messsysteme-von-spot-my-energy-fuer-das-smart-metering/](https://www.e3dc.com/e3-dc-nutzt-intelligente-messsysteme-von-spot-my-energy-fuer-das-smart-metering/) — 11 button/link(s) with no text or aria-label — an agent can't target them
- [https://www.e3dc.com/e3-dc-standpunkte-zu-aktuellen-energiepolitischen-fragen/](https://www.e3dc.com/e3-dc-standpunkte-zu-aktuellen-energiepolitischen-fragen/) — 11 button/link(s) with no text or aria-label — an agent can't target them
- [https://www.e3dc.com/e3-dc-und-lumenaza-bringen-prosumer-an-den-markt/](https://www.e3dc.com/e3-dc-und-lumenaza-bringen-prosumer-an-den-markt/) — 11 button/link(s) with no text or aria-label — an agent can't target them
- [https://www.e3dc.com/e3-dc-wird-mit-dem-top-brand-pv-siegel-fuer-deutschland-oesterreich-und-die-schweiz-ausgezeichnet/](https://www.e3dc.com/e3-dc-wird-mit-dem-top-brand-pv-siegel-fuer-deutschland-oesterreich-und-die-schweiz-ausgezeichnet/) — 11 button/link(s) with no text or aria-label — an agent can't target them
- [https://www.e3dc.com/eeg-novelle-2021-was-aendert-sich-fuer-den-eigenverbrauch/](https://www.e3dc.com/eeg-novelle-2021-was-aendert-sich-fuer-den-eigenverbrauch/) — 11 button/link(s) with no text or aria-label — an agent can't target them
- [https://www.e3dc.com/eigene-energie-ist-die-basis-fuer-den-erfolg/](https://www.e3dc.com/eigene-energie-ist-die-basis-fuer-den-erfolg/) — 8 button/link(s) with no text or aria-label — an agent can't target them
- [https://www.e3dc.com/eigenstrom-fuer-den-firmenwagen/](https://www.e3dc.com/eigenstrom-fuer-den-firmenwagen/) — 12 button/link(s) with no text or aria-label — an agent can't target them
- [https://www.e3dc.com/elektroautos-werden-stromspeicher-fuer-gebaeude/](https://www.e3dc.com/elektroautos-werden-stromspeicher-fuer-gebaeude/) — 11 button/link(s) with no text or aria-label — an agent can't target them
- [https://www.e3dc.com/energiemanagement/](https://www.e3dc.com/energiemanagement/) — 6 button/link(s) with no text or aria-label — an agent can't target them
- [https://www.e3dc.com/energieportal/](https://www.e3dc.com/energieportal/) — 6 button/link(s) with no text or aria-label — an agent can't target them
- [https://www.e3dc.com/erneute-auszeichnung-mit-solarprosumeraward-2023-24-in-4-kategorien/](https://www.e3dc.com/erneute-auszeichnung-mit-solarprosumeraward-2023-24-in-4-kategorien/) — 11 button/link(s) with no text or aria-label — an agent can't target them
- [https://www.e3dc.com/ertrag-einer-pv-anlage/](https://www.e3dc.com/ertrag-einer-pv-anlage/) — 8 button/link(s) with no text or aria-label — an agent can't target them
- [https://www.e3dc.com/fakten-zur-photovoltaikanlage/](https://www.e3dc.com/fakten-zur-photovoltaikanlage/) — 8 button/link(s) with no text or aria-label — an agent can't target them
- [https://www.e3dc.com/hager-group-startet-neue-business-unit-hagerenergy/](https://www.e3dc.com/hager-group-startet-neue-business-unit-hagerenergy/) — 8 button/link(s) with no text or aria-label — an agent can't target them
- [https://www.e3dc.com/hager-group-uebernimmt-energiespeicherspezialist-e3-dc/](https://www.e3dc.com/hager-group-uebernimmt-energiespeicherspezialist-e3-dc/) — 11 button/link(s) with no text or aria-label — an agent can't target them
- [https://www.e3dc.com/hausautomation/](https://www.e3dc.com/hausautomation/) — 6 button/link(s) with no text or aria-label — an agent can't target them
- [https://www.e3dc.com/hochleistungs-doppelstrings-bis-2-x-27a-im-hauskraftwerk/](https://www.e3dc.com/hochleistungs-doppelstrings-bis-2-x-27a-im-hauskraftwerk/) — 12 button/link(s) with no text or aria-label — an agent can't target them
- [https://www.e3dc.com/kostenloses-update-fuer-e3-dc-stromspeicher/](https://www.e3dc.com/kostenloses-update-fuer-e3-dc-stromspeicher/) — 11 button/link(s) with no text or aria-label — an agent can't target them
- [https://www.e3dc.com/kundenzufriedenheit-bei-e3-dc-ist-erneut-sehr-gut/](https://www.e3dc.com/kundenzufriedenheit-bei-e3-dc-ist-erneut-sehr-gut/) — 8 button/link(s) with no text or aria-label — an agent can't target them
- [https://www.e3dc.com/notstromfunktion/](https://www.e3dc.com/notstromfunktion/) — 6 button/link(s) with no text or aria-label — an agent can't target them
- [https://www.e3dc.com/nulleinspeisung-ist-top-business-model-2020/](https://www.e3dc.com/nulleinspeisung-ist-top-business-model-2020/) — 11 button/link(s) with no text or aria-label — an agent can't target them
- [https://www.e3dc.com/photovoltaik-fuer-den-eigenverbrauch/](https://www.e3dc.com/photovoltaik-fuer-den-eigenverbrauch/) — 8 button/link(s) with no text or aria-label — an agent can't target them
- [https://www.e3dc.com/photovoltaik-leistung/](https://www.e3dc.com/photovoltaik-leistung/) — 8 button/link(s) with no text or aria-label — an agent can't target them
- [https://www.e3dc.com/photovoltaik-und-waermepumpe/](https://www.e3dc.com/photovoltaik-und-waermepumpe/) — 8 button/link(s) with no text or aria-label — an agent can't target them
- [https://www.e3dc.com/pv-module/](https://www.e3dc.com/pv-module/) — 8 button/link(s) with no text or aria-label — an agent can't target them
- [https://www.e3dc.com/pv-speicher-als-smarthome-zentrale/](https://www.e3dc.com/pv-speicher-als-smarthome-zentrale/) — 11 button/link(s) with no text or aria-label — an agent can't target them
- [https://www.e3dc.com/pv-speicher-nachruesten/](https://www.e3dc.com/pv-speicher-nachruesten/) — 8 button/link(s) with no text or aria-label — an agent can't target them
- [https://www.e3dc.com/ratgeber-stromspeicher/](https://www.e3dc.com/ratgeber-stromspeicher/) — 8 button/link(s) with no text or aria-label — an agent can't target them
- [https://www.e3dc.com/ready-for-future-e3-dc-praesentiert-neue-entwicklungen/](https://www.e3dc.com/ready-for-future-e3-dc-praesentiert-neue-entwicklungen/) — 11 button/link(s) with no text or aria-label — an agent can't target them
- [https://www.e3dc.com/sektorenkopplung-von-hauskraftwerk-und-waermepumpe/](https://www.e3dc.com/sektorenkopplung-von-hauskraftwerk-und-waermepumpe/) — 11 button/link(s) with no text or aria-label — an agent can't target them
- [https://www.e3dc.com/solar-wechselrichter/](https://www.e3dc.com/solar-wechselrichter/) — 8 button/link(s) with no text or aria-label — an agent can't target them
- [https://www.e3dc.com/solarpaket-1-das-ist-jetzt-wichtig/](https://www.e3dc.com/solarpaket-1-das-ist-jetzt-wichtig/) — 11 button/link(s) with no text or aria-label — an agent can't target them
- [https://www.e3dc.com/systemtechnik/](https://www.e3dc.com/systemtechnik/) — 6 button/link(s) with no text or aria-label — an agent can't target them
- [https://www.e3dc.com/trilink-technologie-fuer-mehrfamilienhaeuser/](https://www.e3dc.com/trilink-technologie-fuer-mehrfamilienhaeuser/) — 11 button/link(s) with no text or aria-label — an agent can't target them
- [https://www.e3dc.com/waermepumpen-klimaanlagen-als-komplettloesung-fuer-winter-und-sommer/](https://www.e3dc.com/waermepumpen-klimaanlagen-als-komplettloesung-fuer-winter-und-sommer/) — 12 button/link(s) with no text or aria-label — an agent can't target them
- [https://www.e3dc.com/wie-hauskraftwerke-heute-und-morgen-360-autark-machen/](https://www.e3dc.com/wie-hauskraftwerke-heute-und-morgen-360-autark-machen/) — 12 button/link(s) with no text or aria-label — an agent can't target them

#### Duplicate page content

- Rule: `duplicate.content` · Category: Duplicate · Occurrences: 2

- [https://www.e3dc.com/ch/trilink-technologie-fuer-mehrfamilienhaeuser/](https://www.e3dc.com/ch/trilink-technologie-fuer-mehrfamilienhaeuser/) — content shared by 2 pages: https://www.e3dc.com/trilink-technologie-fuer-mehrfamilienhaeuser/
- [https://www.e3dc.com/trilink-technologie-fuer-mehrfamilienhaeuser/](https://www.e3dc.com/trilink-technologie-fuer-mehrfamilienhaeuser/) — content shared by 2 pages: https://www.e3dc.com/ch/trilink-technologie-fuer-mehrfamilienhaeuser/

#### Near-duplicate page content

- Rule: `duplicate.near` · Category: Duplicate · Occurrences: 29

- [https://www.e3dc.com/andreas-piepenbrink-die-photovoltaik-bietet-mehr/](https://www.e3dc.com/andreas-piepenbrink-die-photovoltaik-bietet-mehr/) — near-duplicate of 28 page(s): https://www.e3dc.com/ch/trilink-technologie-fuer-mehrfamilienhaeuser/, https://www.e3dc.com/e3-dc-nutzt-intelligente-messsysteme-von-spot-my-energy-fuer-das-smart-metering/, https://www.e3dc.com/erneute-auszeichnung-mit-solarprosumeraward-2023-24-in-4-kategorien/
- [https://www.e3dc.com/ch/trilink-technologie-fuer-mehrfamilienhaeuser/](https://www.e3dc.com/ch/trilink-technologie-fuer-mehrfamilienhaeuser/) — near-duplicate of 28 page(s): https://www.e3dc.com/e3-dc-nutzt-intelligente-messsysteme-von-spot-my-energy-fuer-das-smart-metering/, https://www.e3dc.com/erneute-auszeichnung-mit-solarprosumeraward-2023-24-in-4-kategorien/, https://www.e3dc.com/e3-dc-integriert-ostroms-dynamischen-stromtarif/
- [https://www.e3dc.com/den-standard-fuer-klimaneutrale-gebaeude-gesetzt/](https://www.e3dc.com/den-standard-fuer-klimaneutrale-gebaeude-gesetzt/) — near-duplicate of 28 page(s): https://www.e3dc.com/ch/trilink-technologie-fuer-mehrfamilienhaeuser/, https://www.e3dc.com/e3-dc-nutzt-intelligente-messsysteme-von-spot-my-energy-fuer-das-smart-metering/, https://www.e3dc.com/erneute-auszeichnung-mit-solarprosumeraward-2023-24-in-4-kategorien/
- [https://www.e3dc.com/der-neue-quattroporte-von-e3-dc/](https://www.e3dc.com/der-neue-quattroporte-von-e3-dc/) — near-duplicate of 28 page(s): https://www.e3dc.com/ch/trilink-technologie-fuer-mehrfamilienhaeuser/, https://www.e3dc.com/e3-dc-nutzt-intelligente-messsysteme-von-spot-my-energy-fuer-das-smart-metering/, https://www.e3dc.com/erneute-auszeichnung-mit-solarprosumeraward-2023-24-in-4-kategorien/
- [https://www.e3dc.com/dynamische-strompreise-mit-e3-dc-maximal-autark-und-transparent/](https://www.e3dc.com/dynamische-strompreise-mit-e3-dc-maximal-autark-und-transparent/) — near-duplicate of 28 page(s): https://www.e3dc.com/ch/trilink-technologie-fuer-mehrfamilienhaeuser/, https://www.e3dc.com/e3-dc-nutzt-intelligente-messsysteme-von-spot-my-energy-fuer-das-smart-metering/, https://www.e3dc.com/erneute-auszeichnung-mit-solarprosumeraward-2023-24-in-4-kategorien/
- [https://www.e3dc.com/e3-dc-integriert-ostroms-dynamischen-stromtarif/](https://www.e3dc.com/e3-dc-integriert-ostroms-dynamischen-stromtarif/) — near-duplicate of 28 page(s): https://www.e3dc.com/ch/trilink-technologie-fuer-mehrfamilienhaeuser/, https://www.e3dc.com/e3-dc-nutzt-intelligente-messsysteme-von-spot-my-energy-fuer-das-smart-metering/, https://www.e3dc.com/erneute-auszeichnung-mit-solarprosumeraward-2023-24-in-4-kategorien/
- [https://www.e3dc.com/e3-dc-ist-offizieller-teampartner-der-deutschen-ski-nationalmannschaft-alpin/](https://www.e3dc.com/e3-dc-ist-offizieller-teampartner-der-deutschen-ski-nationalmannschaft-alpin/) — near-duplicate of 28 page(s): https://www.e3dc.com/ch/trilink-technologie-fuer-mehrfamilienhaeuser/, https://www.e3dc.com/e3-dc-nutzt-intelligente-messsysteme-von-spot-my-energy-fuer-das-smart-metering/, https://www.e3dc.com/erneute-auszeichnung-mit-solarprosumeraward-2023-24-in-4-kategorien/
- [https://www.e3dc.com/e3-dc-nutzt-intelligente-messsysteme-von-spot-my-energy-fuer-das-smart-metering/](https://www.e3dc.com/e3-dc-nutzt-intelligente-messsysteme-von-spot-my-energy-fuer-das-smart-metering/) — near-duplicate of 28 page(s): https://www.e3dc.com/ch/trilink-technologie-fuer-mehrfamilienhaeuser/, https://www.e3dc.com/erneute-auszeichnung-mit-solarprosumeraward-2023-24-in-4-kategorien/, https://www.e3dc.com/e3-dc-integriert-ostroms-dynamischen-stromtarif/
- [https://www.e3dc.com/e3-dc-und-lumenaza-bringen-prosumer-an-den-markt/](https://www.e3dc.com/e3-dc-und-lumenaza-bringen-prosumer-an-den-markt/) — near-duplicate of 28 page(s): https://www.e3dc.com/ch/trilink-technologie-fuer-mehrfamilienhaeuser/, https://www.e3dc.com/e3-dc-nutzt-intelligente-messsysteme-von-spot-my-energy-fuer-das-smart-metering/, https://www.e3dc.com/erneute-auszeichnung-mit-solarprosumeraward-2023-24-in-4-kategorien/
- [https://www.e3dc.com/e3-dc-wird-mit-dem-top-brand-pv-siegel-fuer-deutschland-oesterreich-und-die-schweiz-ausgezeichnet/](https://www.e3dc.com/e3-dc-wird-mit-dem-top-brand-pv-siegel-fuer-deutschland-oesterreich-und-die-schweiz-ausgezeichnet/) — near-duplicate of 28 page(s): https://www.e3dc.com/ch/trilink-technologie-fuer-mehrfamilienhaeuser/, https://www.e3dc.com/e3-dc-nutzt-intelligente-messsysteme-von-spot-my-energy-fuer-das-smart-metering/, https://www.e3dc.com/erneute-auszeichnung-mit-solarprosumeraward-2023-24-in-4-kategorien/
- [https://www.e3dc.com/eeg-novelle-2021-was-aendert-sich-fuer-den-eigenverbrauch/](https://www.e3dc.com/eeg-novelle-2021-was-aendert-sich-fuer-den-eigenverbrauch/) — near-duplicate of 28 page(s): https://www.e3dc.com/ch/trilink-technologie-fuer-mehrfamilienhaeuser/, https://www.e3dc.com/e3-dc-nutzt-intelligente-messsysteme-von-spot-my-energy-fuer-das-smart-metering/, https://www.e3dc.com/erneute-auszeichnung-mit-solarprosumeraward-2023-24-in-4-kategorien/
- [https://www.e3dc.com/eigenstrom-fuer-den-firmenwagen/](https://www.e3dc.com/eigenstrom-fuer-den-firmenwagen/) — near-duplicate of 28 page(s): https://www.e3dc.com/ch/trilink-technologie-fuer-mehrfamilienhaeuser/, https://www.e3dc.com/e3-dc-nutzt-intelligente-messsysteme-von-spot-my-energy-fuer-das-smart-metering/, https://www.e3dc.com/erneute-auszeichnung-mit-solarprosumeraward-2023-24-in-4-kategorien/
- [https://www.e3dc.com/elektroautos-werden-stromspeicher-fuer-gebaeude/](https://www.e3dc.com/elektroautos-werden-stromspeicher-fuer-gebaeude/) — near-duplicate of 28 page(s): https://www.e3dc.com/ch/trilink-technologie-fuer-mehrfamilienhaeuser/, https://www.e3dc.com/e3-dc-nutzt-intelligente-messsysteme-von-spot-my-energy-fuer-das-smart-metering/, https://www.e3dc.com/erneute-auszeichnung-mit-solarprosumeraward-2023-24-in-4-kategorien/
- [https://www.e3dc.com/energiemanagement/](https://www.e3dc.com/energiemanagement/) — near-duplicate of 28 page(s): https://www.e3dc.com/ch/trilink-technologie-fuer-mehrfamilienhaeuser/, https://www.e3dc.com/e3-dc-nutzt-intelligente-messsysteme-von-spot-my-energy-fuer-das-smart-metering/, https://www.e3dc.com/erneute-auszeichnung-mit-solarprosumeraward-2023-24-in-4-kategorien/
- [https://www.e3dc.com/energieportal/](https://www.e3dc.com/energieportal/) — near-duplicate of 28 page(s): https://www.e3dc.com/ch/trilink-technologie-fuer-mehrfamilienhaeuser/, https://www.e3dc.com/e3-dc-nutzt-intelligente-messsysteme-von-spot-my-energy-fuer-das-smart-metering/, https://www.e3dc.com/erneute-auszeichnung-mit-solarprosumeraward-2023-24-in-4-kategorien/
- [https://www.e3dc.com/erneute-auszeichnung-mit-solarprosumeraward-2023-24-in-4-kategorien/](https://www.e3dc.com/erneute-auszeichnung-mit-solarprosumeraward-2023-24-in-4-kategorien/) — near-duplicate of 28 page(s): https://www.e3dc.com/ch/trilink-technologie-fuer-mehrfamilienhaeuser/, https://www.e3dc.com/e3-dc-nutzt-intelligente-messsysteme-von-spot-my-energy-fuer-das-smart-metering/, https://www.e3dc.com/e3-dc-integriert-ostroms-dynamischen-stromtarif/
- [https://www.e3dc.com/hager-group-uebernimmt-energiespeicherspezialist-e3-dc/](https://www.e3dc.com/hager-group-uebernimmt-energiespeicherspezialist-e3-dc/) — near-duplicate of 28 page(s): https://www.e3dc.com/ch/trilink-technologie-fuer-mehrfamilienhaeuser/, https://www.e3dc.com/e3-dc-nutzt-intelligente-messsysteme-von-spot-my-energy-fuer-das-smart-metering/, https://www.e3dc.com/erneute-auszeichnung-mit-solarprosumeraward-2023-24-in-4-kategorien/
- [https://www.e3dc.com/hausautomation/](https://www.e3dc.com/hausautomation/) — near-duplicate of 28 page(s): https://www.e3dc.com/ch/trilink-technologie-fuer-mehrfamilienhaeuser/, https://www.e3dc.com/e3-dc-nutzt-intelligente-messsysteme-von-spot-my-energy-fuer-das-smart-metering/, https://www.e3dc.com/erneute-auszeichnung-mit-solarprosumeraward-2023-24-in-4-kategorien/
- [https://www.e3dc.com/hochleistungs-doppelstrings-bis-2-x-27a-im-hauskraftwerk/](https://www.e3dc.com/hochleistungs-doppelstrings-bis-2-x-27a-im-hauskraftwerk/) — near-duplicate of 28 page(s): https://www.e3dc.com/ch/trilink-technologie-fuer-mehrfamilienhaeuser/, https://www.e3dc.com/e3-dc-nutzt-intelligente-messsysteme-von-spot-my-energy-fuer-das-smart-metering/, https://www.e3dc.com/erneute-auszeichnung-mit-solarprosumeraward-2023-24-in-4-kategorien/
- [https://www.e3dc.com/kostenloses-update-fuer-e3-dc-stromspeicher/](https://www.e3dc.com/kostenloses-update-fuer-e3-dc-stromspeicher/) — near-duplicate of 28 page(s): https://www.e3dc.com/ch/trilink-technologie-fuer-mehrfamilienhaeuser/, https://www.e3dc.com/e3-dc-nutzt-intelligente-messsysteme-von-spot-my-energy-fuer-das-smart-metering/, https://www.e3dc.com/erneute-auszeichnung-mit-solarprosumeraward-2023-24-in-4-kategorien/
- [https://www.e3dc.com/notstromfunktion/](https://www.e3dc.com/notstromfunktion/) — near-duplicate of 28 page(s): https://www.e3dc.com/ch/trilink-technologie-fuer-mehrfamilienhaeuser/, https://www.e3dc.com/e3-dc-nutzt-intelligente-messsysteme-von-spot-my-energy-fuer-das-smart-metering/, https://www.e3dc.com/erneute-auszeichnung-mit-solarprosumeraward-2023-24-in-4-kategorien/
- [https://www.e3dc.com/nulleinspeisung-ist-top-business-model-2020/](https://www.e3dc.com/nulleinspeisung-ist-top-business-model-2020/) — near-duplicate of 28 page(s): https://www.e3dc.com/ch/trilink-technologie-fuer-mehrfamilienhaeuser/, https://www.e3dc.com/e3-dc-nutzt-intelligente-messsysteme-von-spot-my-energy-fuer-das-smart-metering/, https://www.e3dc.com/erneute-auszeichnung-mit-solarprosumeraward-2023-24-in-4-kategorien/
- [https://www.e3dc.com/pv-speicher-als-smarthome-zentrale/](https://www.e3dc.com/pv-speicher-als-smarthome-zentrale/) — near-duplicate of 28 page(s): https://www.e3dc.com/ch/trilink-technologie-fuer-mehrfamilienhaeuser/, https://www.e3dc.com/e3-dc-nutzt-intelligente-messsysteme-von-spot-my-energy-fuer-das-smart-metering/, https://www.e3dc.com/erneute-auszeichnung-mit-solarprosumeraward-2023-24-in-4-kategorien/
- [https://www.e3dc.com/ready-for-future-e3-dc-praesentiert-neue-entwicklungen/](https://www.e3dc.com/ready-for-future-e3-dc-praesentiert-neue-entwicklungen/) — near-duplicate of 28 page(s): https://www.e3dc.com/ch/trilink-technologie-fuer-mehrfamilienhaeuser/, https://www.e3dc.com/e3-dc-nutzt-intelligente-messsysteme-von-spot-my-energy-fuer-das-smart-metering/, https://www.e3dc.com/erneute-auszeichnung-mit-solarprosumeraward-2023-24-in-4-kategorien/
- [https://www.e3dc.com/sektorenkopplung-von-hauskraftwerk-und-waermepumpe/](https://www.e3dc.com/sektorenkopplung-von-hauskraftwerk-und-waermepumpe/) — near-duplicate of 28 page(s): https://www.e3dc.com/ch/trilink-technologie-fuer-mehrfamilienhaeuser/, https://www.e3dc.com/e3-dc-nutzt-intelligente-messsysteme-von-spot-my-energy-fuer-das-smart-metering/, https://www.e3dc.com/erneute-auszeichnung-mit-solarprosumeraward-2023-24-in-4-kategorien/
- [https://www.e3dc.com/solarpaket-1-das-ist-jetzt-wichtig/](https://www.e3dc.com/solarpaket-1-das-ist-jetzt-wichtig/) — near-duplicate of 28 page(s): https://www.e3dc.com/ch/trilink-technologie-fuer-mehrfamilienhaeuser/, https://www.e3dc.com/e3-dc-nutzt-intelligente-messsysteme-von-spot-my-energy-fuer-das-smart-metering/, https://www.e3dc.com/erneute-auszeichnung-mit-solarprosumeraward-2023-24-in-4-kategorien/
- [https://www.e3dc.com/systemtechnik/](https://www.e3dc.com/systemtechnik/) — near-duplicate of 28 page(s): https://www.e3dc.com/ch/trilink-technologie-fuer-mehrfamilienhaeuser/, https://www.e3dc.com/e3-dc-nutzt-intelligente-messsysteme-von-spot-my-energy-fuer-das-smart-metering/, https://www.e3dc.com/erneute-auszeichnung-mit-solarprosumeraward-2023-24-in-4-kategorien/
- [https://www.e3dc.com/trilink-technologie-fuer-mehrfamilienhaeuser/](https://www.e3dc.com/trilink-technologie-fuer-mehrfamilienhaeuser/) — near-duplicate of 28 page(s): https://www.e3dc.com/ch/trilink-technologie-fuer-mehrfamilienhaeuser/, https://www.e3dc.com/e3-dc-nutzt-intelligente-messsysteme-von-spot-my-energy-fuer-das-smart-metering/, https://www.e3dc.com/erneute-auszeichnung-mit-solarprosumeraward-2023-24-in-4-kategorien/
- [https://www.e3dc.com/waermepumpen-klimaanlagen-als-komplettloesung-fuer-winter-und-sommer/](https://www.e3dc.com/waermepumpen-klimaanlagen-als-komplettloesung-fuer-winter-und-sommer/) — near-duplicate of 28 page(s): https://www.e3dc.com/ch/trilink-technologie-fuer-mehrfamilienhaeuser/, https://www.e3dc.com/e3-dc-nutzt-intelligente-messsysteme-von-spot-my-energy-fuer-das-smart-metering/, https://www.e3dc.com/erneute-auszeichnung-mit-solarprosumeraward-2023-24-in-4-kategorien/

#### Duplicate <title> across pages

- Rule: `duplicate.title` · Category: Duplicate · Occurrences: 2

- [https://www.e3dc.com/ch/trilink-technologie-fuer-mehrfamilienhaeuser/](https://www.e3dc.com/ch/trilink-technologie-fuer-mehrfamilienhaeuser/) — title shared by 2 pages: https://www.e3dc.com/trilink-technologie-fuer-mehrfamilienhaeuser/
- [https://www.e3dc.com/trilink-technologie-fuer-mehrfamilienhaeuser/](https://www.e3dc.com/trilink-technologie-fuer-mehrfamilienhaeuser/) — title shared by 2 pages: https://www.e3dc.com/ch/trilink-technologie-fuer-mehrfamilienhaeuser/

#### Missing <h1>

- Rule: `h1.missing` · Category: Headings · Occurrences: 1

- [https://www.e3dc.com/](https://www.e3dc.com/)

#### Internal link points to a redirect

- Rule: `links.redirect_target` · Category: Links · Occurrences: 5

- [https://www.e3dc.com/energiemanagement/](https://www.e3dc.com/energiemanagement/) — https://www.e3dc.com/garantie-service/ → https://www.e3dc.com/garantie-service/
- [https://www.e3dc.com/energieportal/](https://www.e3dc.com/energieportal/) — https://www.e3dc.com/garantie-service/ → https://www.e3dc.com/garantie-service/
- [https://www.e3dc.com/hausautomation/](https://www.e3dc.com/hausautomation/) — https://www.e3dc.com/garantie-service/ → https://www.e3dc.com/garantie-service/
- [https://www.e3dc.com/notstromfunktion/](https://www.e3dc.com/notstromfunktion/) — https://www.e3dc.com/garantie-service/ → https://www.e3dc.com/garantie-service/
- [https://www.e3dc.com/systemtechnik/](https://www.e3dc.com/systemtechnik/) — https://www.e3dc.com/garantie-service/ → https://www.e3dc.com/garantie-service/

#### Missing meta description

- Rule: `meta_desc.missing` · Category: Meta Description · Occurrences: 24

- [https://www.e3dc.com/ausgezeichnete-speichertechnologie-e3-dc-ist-best-of-german-industry/](https://www.e3dc.com/ausgezeichnete-speichertechnologie-e3-dc-ist-best-of-german-industry/)
- [https://www.e3dc.com/batteriespeicher-fuer-pv-anlage/](https://www.e3dc.com/batteriespeicher-fuer-pv-anlage/)
- [https://www.e3dc.com/batterietechnik-fuer-stromspeicher/](https://www.e3dc.com/batterietechnik-fuer-stromspeicher/)
- [https://www.e3dc.com/co2-freies-heizen-e3-dc-macht-sg-ready-zum-standard/](https://www.e3dc.com/co2-freies-heizen-e3-dc-macht-sg-ready-zum-standard/)
- [https://www.e3dc.com/deutschland-kfw-442/](https://www.e3dc.com/deutschland-kfw-442/)
- [https://www.e3dc.com/e3-dc-integriert-ostroms-dynamischen-stromtarif/](https://www.e3dc.com/e3-dc-integriert-ostroms-dynamischen-stromtarif/)
- [https://www.e3dc.com/e3-dc-ist-offizieller-teampartner-der-deutschen-ski-nationalmannschaft-alpin/](https://www.e3dc.com/e3-dc-ist-offizieller-teampartner-der-deutschen-ski-nationalmannschaft-alpin/)
- [https://www.e3dc.com/e3-dc-nutzt-intelligente-messsysteme-von-spot-my-energy-fuer-das-smart-metering/](https://www.e3dc.com/e3-dc-nutzt-intelligente-messsysteme-von-spot-my-energy-fuer-das-smart-metering/)
- [https://www.e3dc.com/e3-dc-wird-mit-dem-top-brand-pv-siegel-fuer-deutschland-oesterreich-und-die-schweiz-ausgezeichnet/](https://www.e3dc.com/e3-dc-wird-mit-dem-top-brand-pv-siegel-fuer-deutschland-oesterreich-und-die-schweiz-ausgezeichnet/)
- [https://www.e3dc.com/eigene-energie-ist-die-basis-fuer-den-erfolg/](https://www.e3dc.com/eigene-energie-ist-die-basis-fuer-den-erfolg/)
- [https://www.e3dc.com/elektroautos-werden-stromspeicher-fuer-gebaeude/](https://www.e3dc.com/elektroautos-werden-stromspeicher-fuer-gebaeude/)
- [https://www.e3dc.com/erneute-auszeichnung-mit-solarprosumeraward-2023-24-in-4-kategorien/](https://www.e3dc.com/erneute-auszeichnung-mit-solarprosumeraward-2023-24-in-4-kategorien/)
- [https://www.e3dc.com/ertrag-einer-pv-anlage/](https://www.e3dc.com/ertrag-einer-pv-anlage/)
- [https://www.e3dc.com/fakten-zur-photovoltaikanlage/](https://www.e3dc.com/fakten-zur-photovoltaikanlage/)
- [https://www.e3dc.com/hager-group-startet-neue-business-unit-hagerenergy/](https://www.e3dc.com/hager-group-startet-neue-business-unit-hagerenergy/)
- [https://www.e3dc.com/kundenzufriedenheit-bei-e3-dc-ist-erneut-sehr-gut/](https://www.e3dc.com/kundenzufriedenheit-bei-e3-dc-ist-erneut-sehr-gut/)
- [https://www.e3dc.com/photovoltaik-fuer-den-eigenverbrauch/](https://www.e3dc.com/photovoltaik-fuer-den-eigenverbrauch/)
- [https://www.e3dc.com/photovoltaik-leistung/](https://www.e3dc.com/photovoltaik-leistung/)
- [https://www.e3dc.com/photovoltaik-und-waermepumpe/](https://www.e3dc.com/photovoltaik-und-waermepumpe/)
- [https://www.e3dc.com/pv-module/](https://www.e3dc.com/pv-module/)
- [https://www.e3dc.com/pv-speicher-nachruesten/](https://www.e3dc.com/pv-speicher-nachruesten/)
- [https://www.e3dc.com/ratgeber-stromspeicher/](https://www.e3dc.com/ratgeber-stromspeicher/)
- [https://www.e3dc.com/solar-wechselrichter/](https://www.e3dc.com/solar-wechselrichter/)
- [https://www.e3dc.com/waermepumpen-klimaanlagen-als-komplettloesung-fuer-winter-und-sommer/](https://www.e3dc.com/waermepumpen-klimaanlagen-als-komplettloesung-fuer-winter-und-sommer/)

#### Render-blocking script in <head> (no defer/async)

- Rule: `perf.render_blocking` · Category: Performance · Occurrences: 49

- [https://www.e3dc.com/](https://www.e3dc.com/) — 3 render-blocking <script> in <head> (add defer/async or use type=module)
- [https://www.e3dc.com/andreas-piepenbrink-die-photovoltaik-bietet-mehr/](https://www.e3dc.com/andreas-piepenbrink-die-photovoltaik-bietet-mehr/) — 4 render-blocking <script> in <head> (add defer/async or use type=module)
- [https://www.e3dc.com/ausgezeichnete-speichertechnologie-e3-dc-ist-best-of-german-industry/](https://www.e3dc.com/ausgezeichnete-speichertechnologie-e3-dc-ist-best-of-german-industry/) — 3 render-blocking <script> in <head> (add defer/async or use type=module)
- [https://www.e3dc.com/batteriespeicher-fuer-pv-anlage/](https://www.e3dc.com/batteriespeicher-fuer-pv-anlage/) — 3 render-blocking <script> in <head> (add defer/async or use type=module)
- [https://www.e3dc.com/batterietechnik-fuer-stromspeicher/](https://www.e3dc.com/batterietechnik-fuer-stromspeicher/) — 3 render-blocking <script> in <head> (add defer/async or use type=module)
- [https://www.e3dc.com/ch/trilink-technologie-fuer-mehrfamilienhaeuser/](https://www.e3dc.com/ch/trilink-technologie-fuer-mehrfamilienhaeuser/) — 4 render-blocking <script> in <head> (add defer/async or use type=module)
- [https://www.e3dc.com/co2-freies-heizen-e3-dc-macht-sg-ready-zum-standard/](https://www.e3dc.com/co2-freies-heizen-e3-dc-macht-sg-ready-zum-standard/) — 3 render-blocking <script> in <head> (add defer/async or use type=module)
- [https://www.e3dc.com/den-standard-fuer-klimaneutrale-gebaeude-gesetzt/](https://www.e3dc.com/den-standard-fuer-klimaneutrale-gebaeude-gesetzt/) — 4 render-blocking <script> in <head> (add defer/async or use type=module)
- [https://www.e3dc.com/der-neue-quattroporte-von-e3-dc/](https://www.e3dc.com/der-neue-quattroporte-von-e3-dc/) — 4 render-blocking <script> in <head> (add defer/async or use type=module)
- [https://www.e3dc.com/deutschland-kfw-442/](https://www.e3dc.com/deutschland-kfw-442/) — 3 render-blocking <script> in <head> (add defer/async or use type=module)
- [https://www.e3dc.com/dynamische-strompreise-mit-e3-dc-maximal-autark-und-transparent/](https://www.e3dc.com/dynamische-strompreise-mit-e3-dc-maximal-autark-und-transparent/) — 4 render-blocking <script> in <head> (add defer/async or use type=module)
- [https://www.e3dc.com/e3-dc-integriert-ostroms-dynamischen-stromtarif/](https://www.e3dc.com/e3-dc-integriert-ostroms-dynamischen-stromtarif/) — 4 render-blocking <script> in <head> (add defer/async or use type=module)
- [https://www.e3dc.com/e3-dc-ist-offizieller-teampartner-der-deutschen-ski-nationalmannschaft-alpin/](https://www.e3dc.com/e3-dc-ist-offizieller-teampartner-der-deutschen-ski-nationalmannschaft-alpin/) — 4 render-blocking <script> in <head> (add defer/async or use type=module)
- [https://www.e3dc.com/e3-dc-nutzt-intelligente-messsysteme-von-spot-my-energy-fuer-das-smart-metering/](https://www.e3dc.com/e3-dc-nutzt-intelligente-messsysteme-von-spot-my-energy-fuer-das-smart-metering/) — 4 render-blocking <script> in <head> (add defer/async or use type=module)
- [https://www.e3dc.com/e3-dc-standpunkte-zu-aktuellen-energiepolitischen-fragen/](https://www.e3dc.com/e3-dc-standpunkte-zu-aktuellen-energiepolitischen-fragen/) — 4 render-blocking <script> in <head> (add defer/async or use type=module)
- [https://www.e3dc.com/e3-dc-und-lumenaza-bringen-prosumer-an-den-markt/](https://www.e3dc.com/e3-dc-und-lumenaza-bringen-prosumer-an-den-markt/) — 4 render-blocking <script> in <head> (add defer/async or use type=module)
- [https://www.e3dc.com/e3-dc-wird-mit-dem-top-brand-pv-siegel-fuer-deutschland-oesterreich-und-die-schweiz-ausgezeichnet/](https://www.e3dc.com/e3-dc-wird-mit-dem-top-brand-pv-siegel-fuer-deutschland-oesterreich-und-die-schweiz-ausgezeichnet/) — 4 render-blocking <script> in <head> (add defer/async or use type=module)
- [https://www.e3dc.com/eeg-novelle-2021-was-aendert-sich-fuer-den-eigenverbrauch/](https://www.e3dc.com/eeg-novelle-2021-was-aendert-sich-fuer-den-eigenverbrauch/) — 4 render-blocking <script> in <head> (add defer/async or use type=module)
- [https://www.e3dc.com/eigene-energie-ist-die-basis-fuer-den-erfolg/](https://www.e3dc.com/eigene-energie-ist-die-basis-fuer-den-erfolg/) — 3 render-blocking <script> in <head> (add defer/async or use type=module)
- [https://www.e3dc.com/eigenstrom-fuer-den-firmenwagen/](https://www.e3dc.com/eigenstrom-fuer-den-firmenwagen/) — 4 render-blocking <script> in <head> (add defer/async or use type=module)
- [https://www.e3dc.com/elektroautos-werden-stromspeicher-fuer-gebaeude/](https://www.e3dc.com/elektroautos-werden-stromspeicher-fuer-gebaeude/) — 4 render-blocking <script> in <head> (add defer/async or use type=module)
- [https://www.e3dc.com/energiemanagement/](https://www.e3dc.com/energiemanagement/) — 4 render-blocking <script> in <head> (add defer/async or use type=module)
- [https://www.e3dc.com/energieportal/](https://www.e3dc.com/energieportal/) — 4 render-blocking <script> in <head> (add defer/async or use type=module)
- [https://www.e3dc.com/erneute-auszeichnung-mit-solarprosumeraward-2023-24-in-4-kategorien/](https://www.e3dc.com/erneute-auszeichnung-mit-solarprosumeraward-2023-24-in-4-kategorien/) — 4 render-blocking <script> in <head> (add defer/async or use type=module)
- [https://www.e3dc.com/ertrag-einer-pv-anlage/](https://www.e3dc.com/ertrag-einer-pv-anlage/) — 3 render-blocking <script> in <head> (add defer/async or use type=module)
- [https://www.e3dc.com/fakten-zur-photovoltaikanlage/](https://www.e3dc.com/fakten-zur-photovoltaikanlage/) — 3 render-blocking <script> in <head> (add defer/async or use type=module)
- [https://www.e3dc.com/hager-group-startet-neue-business-unit-hagerenergy/](https://www.e3dc.com/hager-group-startet-neue-business-unit-hagerenergy/) — 3 render-blocking <script> in <head> (add defer/async or use type=module)
- [https://www.e3dc.com/hager-group-uebernimmt-energiespeicherspezialist-e3-dc/](https://www.e3dc.com/hager-group-uebernimmt-energiespeicherspezialist-e3-dc/) — 4 render-blocking <script> in <head> (add defer/async or use type=module)
- [https://www.e3dc.com/hausautomation/](https://www.e3dc.com/hausautomation/) — 4 render-blocking <script> in <head> (add defer/async or use type=module)
- [https://www.e3dc.com/hochleistungs-doppelstrings-bis-2-x-27a-im-hauskraftwerk/](https://www.e3dc.com/hochleistungs-doppelstrings-bis-2-x-27a-im-hauskraftwerk/) — 4 render-blocking <script> in <head> (add defer/async or use type=module)
- [https://www.e3dc.com/kostenloses-update-fuer-e3-dc-stromspeicher/](https://www.e3dc.com/kostenloses-update-fuer-e3-dc-stromspeicher/) — 4 render-blocking <script> in <head> (add defer/async or use type=module)
- [https://www.e3dc.com/kundenzufriedenheit-bei-e3-dc-ist-erneut-sehr-gut/](https://www.e3dc.com/kundenzufriedenheit-bei-e3-dc-ist-erneut-sehr-gut/) — 3 render-blocking <script> in <head> (add defer/async or use type=module)
- [https://www.e3dc.com/notstromfunktion/](https://www.e3dc.com/notstromfunktion/) — 4 render-blocking <script> in <head> (add defer/async or use type=module)
- [https://www.e3dc.com/nulleinspeisung-ist-top-business-model-2020/](https://www.e3dc.com/nulleinspeisung-ist-top-business-model-2020/) — 4 render-blocking <script> in <head> (add defer/async or use type=module)
- [https://www.e3dc.com/photovoltaik-fuer-den-eigenverbrauch/](https://www.e3dc.com/photovoltaik-fuer-den-eigenverbrauch/) — 3 render-blocking <script> in <head> (add defer/async or use type=module)
- [https://www.e3dc.com/photovoltaik-leistung/](https://www.e3dc.com/photovoltaik-leistung/) — 3 render-blocking <script> in <head> (add defer/async or use type=module)
- [https://www.e3dc.com/photovoltaik-und-waermepumpe/](https://www.e3dc.com/photovoltaik-und-waermepumpe/) — 3 render-blocking <script> in <head> (add defer/async or use type=module)
- [https://www.e3dc.com/pv-module/](https://www.e3dc.com/pv-module/) — 3 render-blocking <script> in <head> (add defer/async or use type=module)
- [https://www.e3dc.com/pv-speicher-als-smarthome-zentrale/](https://www.e3dc.com/pv-speicher-als-smarthome-zentrale/) — 4 render-blocking <script> in <head> (add defer/async or use type=module)
- [https://www.e3dc.com/pv-speicher-nachruesten/](https://www.e3dc.com/pv-speicher-nachruesten/) — 3 render-blocking <script> in <head> (add defer/async or use type=module)
- [https://www.e3dc.com/ratgeber-stromspeicher/](https://www.e3dc.com/ratgeber-stromspeicher/) — 3 render-blocking <script> in <head> (add defer/async or use type=module)
- [https://www.e3dc.com/ready-for-future-e3-dc-praesentiert-neue-entwicklungen/](https://www.e3dc.com/ready-for-future-e3-dc-praesentiert-neue-entwicklungen/) — 4 render-blocking <script> in <head> (add defer/async or use type=module)
- [https://www.e3dc.com/sektorenkopplung-von-hauskraftwerk-und-waermepumpe/](https://www.e3dc.com/sektorenkopplung-von-hauskraftwerk-und-waermepumpe/) — 4 render-blocking <script> in <head> (add defer/async or use type=module)
- [https://www.e3dc.com/solar-wechselrichter/](https://www.e3dc.com/solar-wechselrichter/) — 3 render-blocking <script> in <head> (add defer/async or use type=module)
- [https://www.e3dc.com/solarpaket-1-das-ist-jetzt-wichtig/](https://www.e3dc.com/solarpaket-1-das-ist-jetzt-wichtig/) — 4 render-blocking <script> in <head> (add defer/async or use type=module)
- [https://www.e3dc.com/systemtechnik/](https://www.e3dc.com/systemtechnik/) — 4 render-blocking <script> in <head> (add defer/async or use type=module)
- [https://www.e3dc.com/trilink-technologie-fuer-mehrfamilienhaeuser/](https://www.e3dc.com/trilink-technologie-fuer-mehrfamilienhaeuser/) — 4 render-blocking <script> in <head> (add defer/async or use type=module)
- [https://www.e3dc.com/waermepumpen-klimaanlagen-als-komplettloesung-fuer-winter-und-sommer/](https://www.e3dc.com/waermepumpen-klimaanlagen-als-komplettloesung-fuer-winter-und-sommer/) — 4 render-blocking <script> in <head> (add defer/async or use type=module)
- [https://www.e3dc.com/wie-hauskraftwerke-heute-und-morgen-360-autark-machen/](https://www.e3dc.com/wie-hauskraftwerke-heute-und-morgen-360-autark-machen/) — 4 render-blocking <script> in <head> (add defer/async or use type=module)

#### BreadcrumbList present but structurally incomplete

- Rule: `schema.breadcrumb_incomplete` · Category: Structured Data · Occurrences: 1

- [https://www.e3dc.com/](https://www.e3dc.com/) — a BreadcrumbList is present but structurally incomplete — missing required itemListElement. Give itemListElement at least 2 ListItems, each with a sequential integer position and a name, and an item URL on every entry except the last.

#### Schema describes content not visible on the page

- Rule: `schema.hidden_content` · Category: Structured Data · Occurrences: 18

- [https://www.e3dc.com/](https://www.e3dc.com/) — a schema name/headline ("Startseite - E3/DC") does not appear in the page's visible text — Google's policies prohibit marking up content not visible to readers. This is a heuristic (a static-HTML substring check): JS-rendered or abbreviated names can be false positives, so verify before removing.
- [https://www.e3dc.com/ausgezeichnete-speichertechnologie-e3-dc-ist-best-of-german-industry/](https://www.e3dc.com/ausgezeichnete-speichertechnologie-e3-dc-ist-best-of-german-industry/) — a schema name/headline ("Tori Naber") does not appear in the page's visible text — Google's policies prohibit marking up content not visible to readers. This is a heuristic (a static-HTML substring check): JS-rendered or abbreviated names can be false positives, so verify before removing.
- [https://www.e3dc.com/batteriespeicher-fuer-pv-anlage/](https://www.e3dc.com/batteriespeicher-fuer-pv-anlage/) — a schema name/headline ("Tori Naber") does not appear in the page's visible text — Google's policies prohibit marking up content not visible to readers. This is a heuristic (a static-HTML substring check): JS-rendered or abbreviated names can be false positives, so verify before removing.
- [https://www.e3dc.com/batterietechnik-fuer-stromspeicher/](https://www.e3dc.com/batterietechnik-fuer-stromspeicher/) — a schema name/headline ("Tori Naber") does not appear in the page's visible text — Google's policies prohibit marking up content not visible to readers. This is a heuristic (a static-HTML substring check): JS-rendered or abbreviated names can be false positives, so verify before removing.
- [https://www.e3dc.com/co2-freies-heizen-e3-dc-macht-sg-ready-zum-standard/](https://www.e3dc.com/co2-freies-heizen-e3-dc-macht-sg-ready-zum-standard/) — a schema name/headline ("Tori Naber") does not appear in the page's visible text — Google's policies prohibit marking up content not visible to readers. This is a heuristic (a static-HTML substring check): JS-rendered or abbreviated names can be false positives, so verify before removing.
- [https://www.e3dc.com/deutschland-kfw-442/](https://www.e3dc.com/deutschland-kfw-442/) — a schema name/headline ("Tori Naber") does not appear in the page's visible text — Google's policies prohibit marking up content not visible to readers. This is a heuristic (a static-HTML substring check): JS-rendered or abbreviated names can be false positives, so verify before removing.
- [https://www.e3dc.com/eigene-energie-ist-die-basis-fuer-den-erfolg/](https://www.e3dc.com/eigene-energie-ist-die-basis-fuer-den-erfolg/) — a schema name/headline ("Tori Naber") does not appear in the page's visible text — Google's policies prohibit marking up content not visible to readers. This is a heuristic (a static-HTML substring check): JS-rendered or abbreviated names can be false positives, so verify before removing.
- [https://www.e3dc.com/ertrag-einer-pv-anlage/](https://www.e3dc.com/ertrag-einer-pv-anlage/) — a schema name/headline ("Tori Naber") does not appear in the page's visible text — Google's policies prohibit marking up content not visible to readers. This is a heuristic (a static-HTML substring check): JS-rendered or abbreviated names can be false positives, so verify before removing.
- [https://www.e3dc.com/fakten-zur-photovoltaikanlage/](https://www.e3dc.com/fakten-zur-photovoltaikanlage/) — a schema name/headline ("Tori Naber") does not appear in the page's visible text — Google's policies prohibit marking up content not visible to readers. This is a heuristic (a static-HTML substring check): JS-rendered or abbreviated names can be false positives, so verify before removing.
- [https://www.e3dc.com/hager-group-startet-neue-business-unit-hagerenergy/](https://www.e3dc.com/hager-group-startet-neue-business-unit-hagerenergy/) — a schema name/headline ("Tori Naber") does not appear in the page's visible text — Google's policies prohibit marking up content not visible to readers. This is a heuristic (a static-HTML substring check): JS-rendered or abbreviated names can be false positives, so verify before removing.
- [https://www.e3dc.com/kundenzufriedenheit-bei-e3-dc-ist-erneut-sehr-gut/](https://www.e3dc.com/kundenzufriedenheit-bei-e3-dc-ist-erneut-sehr-gut/) — a schema name/headline ("Tori Naber") does not appear in the page's visible text — Google's policies prohibit marking up content not visible to readers. This is a heuristic (a static-HTML substring check): JS-rendered or abbreviated names can be false positives, so verify before removing.
- [https://www.e3dc.com/photovoltaik-fuer-den-eigenverbrauch/](https://www.e3dc.com/photovoltaik-fuer-den-eigenverbrauch/) — a schema name/headline ("Tori Naber") does not appear in the page's visible text — Google's policies prohibit marking up content not visible to readers. This is a heuristic (a static-HTML substring check): JS-rendered or abbreviated names can be false positives, so verify before removing.
- [https://www.e3dc.com/photovoltaik-leistung/](https://www.e3dc.com/photovoltaik-leistung/) — a schema name/headline ("Tori Naber") does not appear in the page's visible text — Google's policies prohibit marking up content not visible to readers. This is a heuristic (a static-HTML substring check): JS-rendered or abbreviated names can be false positives, so verify before removing.
- [https://www.e3dc.com/photovoltaik-und-waermepumpe/](https://www.e3dc.com/photovoltaik-und-waermepumpe/) — a schema name/headline ("Tori Naber") does not appear in the page's visible text — Google's policies prohibit marking up content not visible to readers. This is a heuristic (a static-HTML substring check): JS-rendered or abbreviated names can be false positives, so verify before removing.
- [https://www.e3dc.com/pv-module/](https://www.e3dc.com/pv-module/) — a schema name/headline ("Tori Naber") does not appear in the page's visible text — Google's policies prohibit marking up content not visible to readers. This is a heuristic (a static-HTML substring check): JS-rendered or abbreviated names can be false positives, so verify before removing.
- [https://www.e3dc.com/pv-speicher-nachruesten/](https://www.e3dc.com/pv-speicher-nachruesten/) — a schema name/headline ("Tori Naber") does not appear in the page's visible text — Google's policies prohibit marking up content not visible to readers. This is a heuristic (a static-HTML substring check): JS-rendered or abbreviated names can be false positives, so verify before removing.
- [https://www.e3dc.com/ratgeber-stromspeicher/](https://www.e3dc.com/ratgeber-stromspeicher/) — a schema name/headline ("Tori Naber") does not appear in the page's visible text — Google's policies prohibit marking up content not visible to readers. This is a heuristic (a static-HTML substring check): JS-rendered or abbreviated names can be false positives, so verify before removing.
- [https://www.e3dc.com/solar-wechselrichter/](https://www.e3dc.com/solar-wechselrichter/) — a schema name/headline ("Tori Naber") does not appear in the page's visible text — Google's policies prohibit marking up content not visible to readers. This is a heuristic (a static-HTML substring check): JS-rendered or abbreviated names can be false positives, so verify before removing.

#### Title likely truncated in SERP (too wide)

- Rule: `title.too_long` · Category: Titles · Occurrences: 8

- [https://www.e3dc.com/ausgezeichnete-speichertechnologie-e3-dc-ist-best-of-german-industry/](https://www.e3dc.com/ausgezeichnete-speichertechnologie-e3-dc-ist-best-of-german-industry/) — 79 chars, ~636px (limit ~580px)
- [https://www.e3dc.com/dynamische-strompreise-mit-e3-dc-maximal-autark-und-transparent/](https://www.e3dc.com/dynamische-strompreise-mit-e3-dc-maximal-autark-und-transparent/) — 71 chars, ~587px (limit ~580px)
- [https://www.e3dc.com/e3-dc-ist-offizieller-teampartner-der-deutschen-ski-nationalmannschaft-alpin/](https://www.e3dc.com/e3-dc-ist-offizieller-teampartner-der-deutschen-ski-nationalmannschaft-alpin/) — 84 chars, ~661px (limit ~580px)
- [https://www.e3dc.com/e3-dc-nutzt-intelligente-messsysteme-von-spot-my-energy-fuer-das-smart-metering/](https://www.e3dc.com/e3-dc-nutzt-intelligente-messsysteme-von-spot-my-energy-fuer-das-smart-metering/) — 86 chars, ~696px (limit ~580px)
- [https://www.e3dc.com/e3-dc-wird-mit-dem-top-brand-pv-siegel-fuer-deutschland-oesterreich-und-die-schweiz-ausgezeichnet/](https://www.e3dc.com/e3-dc-wird-mit-dem-top-brand-pv-siegel-fuer-deutschland-oesterreich-und-die-schweiz-ausgezeichnet/) — 106 chars, ~852px (limit ~580px)
- [https://www.e3dc.com/erneute-auszeichnung-mit-solarprosumeraward-2023-24-in-4-kategorien/](https://www.e3dc.com/erneute-auszeichnung-mit-solarprosumeraward-2023-24-in-4-kategorien/) — 76 chars, ~626px (limit ~580px)
- [https://www.e3dc.com/photovoltaik-leistung/](https://www.e3dc.com/photovoltaik-leistung/) — 76 chars, ~593px (limit ~580px)
- [https://www.e3dc.com/pv-module/](https://www.e3dc.com/pv-module/) — 79 chars, ~641px (limit ~580px)

### Notices (552)

#### Heading levels skip a level

- Rule: `agent.heading_skip` · Category: Agent Readiness · Occurrences: 36

- [https://www.e3dc.com/](https://www.e3dc.com/) — h4 follows h2 — skips h3
- [https://www.e3dc.com/andreas-piepenbrink-die-photovoltaik-bietet-mehr/](https://www.e3dc.com/andreas-piepenbrink-die-photovoltaik-bietet-mehr/) — h3 follows h1 — skips h2
- [https://www.e3dc.com/ausgezeichnete-speichertechnologie-e3-dc-ist-best-of-german-industry/](https://www.e3dc.com/ausgezeichnete-speichertechnologie-e3-dc-ist-best-of-german-industry/) — h6 follows h2 — skips h3
- [https://www.e3dc.com/batteriespeicher-fuer-pv-anlage/](https://www.e3dc.com/batteriespeicher-fuer-pv-anlage/) — h4 follows h1 — skips h2
- [https://www.e3dc.com/batterietechnik-fuer-stromspeicher/](https://www.e3dc.com/batterietechnik-fuer-stromspeicher/) — h4 follows h1 — skips h2
- [https://www.e3dc.com/ch/trilink-technologie-fuer-mehrfamilienhaeuser/](https://www.e3dc.com/ch/trilink-technologie-fuer-mehrfamilienhaeuser/) — h4 follows h1 — skips h2
- [https://www.e3dc.com/co2-freies-heizen-e3-dc-macht-sg-ready-zum-standard/](https://www.e3dc.com/co2-freies-heizen-e3-dc-macht-sg-ready-zum-standard/) — h6 follows h2 — skips h3
- [https://www.e3dc.com/der-neue-quattroporte-von-e3-dc/](https://www.e3dc.com/der-neue-quattroporte-von-e3-dc/) — h4 follows h1 — skips h2
- [https://www.e3dc.com/deutschland-kfw-442/](https://www.e3dc.com/deutschland-kfw-442/) — h6 follows h1 — skips h2
- [https://www.e3dc.com/e3-dc-ist-offizieller-teampartner-der-deutschen-ski-nationalmannschaft-alpin/](https://www.e3dc.com/e3-dc-ist-offizieller-teampartner-der-deutschen-ski-nationalmannschaft-alpin/) — h3 follows h1 — skips h2
- [https://www.e3dc.com/e3-dc-nutzt-intelligente-messsysteme-von-spot-my-energy-fuer-das-smart-metering/](https://www.e3dc.com/e3-dc-nutzt-intelligente-messsysteme-von-spot-my-energy-fuer-das-smart-metering/) — h3 follows h1 — skips h2
- [https://www.e3dc.com/e3-dc-standpunkte-zu-aktuellen-energiepolitischen-fragen/](https://www.e3dc.com/e3-dc-standpunkte-zu-aktuellen-energiepolitischen-fragen/) — h4 follows h1 — skips h2
- [https://www.e3dc.com/e3-dc-wird-mit-dem-top-brand-pv-siegel-fuer-deutschland-oesterreich-und-die-schweiz-ausgezeichnet/](https://www.e3dc.com/e3-dc-wird-mit-dem-top-brand-pv-siegel-fuer-deutschland-oesterreich-und-die-schweiz-ausgezeichnet/) — h3 follows h1 — skips h2
- [https://www.e3dc.com/eigene-energie-ist-die-basis-fuer-den-erfolg/](https://www.e3dc.com/eigene-energie-ist-die-basis-fuer-den-erfolg/) — h6 follows h2 — skips h3
- [https://www.e3dc.com/energiemanagement/](https://www.e3dc.com/energiemanagement/) — h4 follows h1 — skips h2
- [https://www.e3dc.com/energieportal/](https://www.e3dc.com/energieportal/) — h4 follows h1 — skips h2
- [https://www.e3dc.com/ertrag-einer-pv-anlage/](https://www.e3dc.com/ertrag-einer-pv-anlage/) — h4 follows h2 — skips h3
- [https://www.e3dc.com/fakten-zur-photovoltaikanlage/](https://www.e3dc.com/fakten-zur-photovoltaikanlage/) — h4 follows h1 — skips h2
- [https://www.e3dc.com/hager-group-startet-neue-business-unit-hagerenergy/](https://www.e3dc.com/hager-group-startet-neue-business-unit-hagerenergy/) — h6 follows h2 — skips h3
- [https://www.e3dc.com/hausautomation/](https://www.e3dc.com/hausautomation/) — h4 follows h1 — skips h2
- [https://www.e3dc.com/kostenloses-update-fuer-e3-dc-stromspeicher/](https://www.e3dc.com/kostenloses-update-fuer-e3-dc-stromspeicher/) — h4 follows h1 — skips h2
- [https://www.e3dc.com/kundenzufriedenheit-bei-e3-dc-ist-erneut-sehr-gut/](https://www.e3dc.com/kundenzufriedenheit-bei-e3-dc-ist-erneut-sehr-gut/) — h6 follows h2 — skips h3
- [https://www.e3dc.com/notstromfunktion/](https://www.e3dc.com/notstromfunktion/) — h4 follows h1 — skips h2
- [https://www.e3dc.com/nulleinspeisung-ist-top-business-model-2020/](https://www.e3dc.com/nulleinspeisung-ist-top-business-model-2020/) — h3 follows h1 — skips h2
- [https://www.e3dc.com/photovoltaik-fuer-den-eigenverbrauch/](https://www.e3dc.com/photovoltaik-fuer-den-eigenverbrauch/) — h4 follows h2 — skips h3
- [https://www.e3dc.com/photovoltaik-leistung/](https://www.e3dc.com/photovoltaik-leistung/) — h4 follows h1 — skips h2
- [https://www.e3dc.com/photovoltaik-und-waermepumpe/](https://www.e3dc.com/photovoltaik-und-waermepumpe/) — h4 follows h1 — skips h2
- [https://www.e3dc.com/pv-module/](https://www.e3dc.com/pv-module/) — h4 follows h1 — skips h2
- [https://www.e3dc.com/pv-speicher-nachruesten/](https://www.e3dc.com/pv-speicher-nachruesten/) — h4 follows h2 — skips h3
- [https://www.e3dc.com/ratgeber-stromspeicher/](https://www.e3dc.com/ratgeber-stromspeicher/) — h4 follows h2 — skips h3
- [https://www.e3dc.com/sektorenkopplung-von-hauskraftwerk-und-waermepumpe/](https://www.e3dc.com/sektorenkopplung-von-hauskraftwerk-und-waermepumpe/) — h3 follows h1 — skips h2
- [https://www.e3dc.com/solar-wechselrichter/](https://www.e3dc.com/solar-wechselrichter/) — h4 follows h1 — skips h2
- [https://www.e3dc.com/solarpaket-1-das-ist-jetzt-wichtig/](https://www.e3dc.com/solarpaket-1-das-ist-jetzt-wichtig/) — h3 follows h1 — skips h2
- [https://www.e3dc.com/systemtechnik/](https://www.e3dc.com/systemtechnik/) — h4 follows h1 — skips h2
- [https://www.e3dc.com/trilink-technologie-fuer-mehrfamilienhaeuser/](https://www.e3dc.com/trilink-technologie-fuer-mehrfamilienhaeuser/) — h4 follows h1 — skips h2
- [https://www.e3dc.com/waermepumpen-klimaanlagen-als-komplettloesung-fuer-winter-und-sommer/](https://www.e3dc.com/waermepumpen-klimaanlagen-als-komplettloesung-fuer-winter-und-sommer/) — h3 follows h1 — skips h2

#### No llms.txt for AI agents

- Rule: `agent.llms_txt_missing` · Category: Agent Readiness · Occurrences: 1

- [https://www.e3dc.com/](https://www.e3dc.com/) — no llms.txt found at the site root — add one so AI agents get a curated site summary

#### Low text-to-HTML ratio

- Rule: `content.low_ratio` · Category: Content · Occurrences: 48

- [https://www.e3dc.com/](https://www.e3dc.com/) — 1.7%
- [https://www.e3dc.com/andreas-piepenbrink-die-photovoltaik-bietet-mehr/](https://www.e3dc.com/andreas-piepenbrink-die-photovoltaik-bietet-mehr/) — 3.6%
- [https://www.e3dc.com/ausgezeichnete-speichertechnologie-e3-dc-ist-best-of-german-industry/](https://www.e3dc.com/ausgezeichnete-speichertechnologie-e3-dc-ist-best-of-german-industry/) — 2.0%
- [https://www.e3dc.com/batteriespeicher-fuer-pv-anlage/](https://www.e3dc.com/batteriespeicher-fuer-pv-anlage/) — 2.4%
- [https://www.e3dc.com/batterietechnik-fuer-stromspeicher/](https://www.e3dc.com/batterietechnik-fuer-stromspeicher/) — 2.1%
- [https://www.e3dc.com/ch/trilink-technologie-fuer-mehrfamilienhaeuser/](https://www.e3dc.com/ch/trilink-technologie-fuer-mehrfamilienhaeuser/) — 4.1%
- [https://www.e3dc.com/co2-freies-heizen-e3-dc-macht-sg-ready-zum-standard/](https://www.e3dc.com/co2-freies-heizen-e3-dc-macht-sg-ready-zum-standard/) — 2.7%
- [https://www.e3dc.com/den-standard-fuer-klimaneutrale-gebaeude-gesetzt/](https://www.e3dc.com/den-standard-fuer-klimaneutrale-gebaeude-gesetzt/) — 4.1%
- [https://www.e3dc.com/der-neue-quattroporte-von-e3-dc/](https://www.e3dc.com/der-neue-quattroporte-von-e3-dc/) — 3.9%
- [https://www.e3dc.com/deutschland-kfw-442/](https://www.e3dc.com/deutschland-kfw-442/) — 2.1%
- [https://www.e3dc.com/dynamische-strompreise-mit-e3-dc-maximal-autark-und-transparent/](https://www.e3dc.com/dynamische-strompreise-mit-e3-dc-maximal-autark-und-transparent/) — 4.2%
- [https://www.e3dc.com/e3-dc-integriert-ostroms-dynamischen-stromtarif/](https://www.e3dc.com/e3-dc-integriert-ostroms-dynamischen-stromtarif/) — 4.2%
- [https://www.e3dc.com/e3-dc-ist-offizieller-teampartner-der-deutschen-ski-nationalmannschaft-alpin/](https://www.e3dc.com/e3-dc-ist-offizieller-teampartner-der-deutschen-ski-nationalmannschaft-alpin/) — 4.4%
- [https://www.e3dc.com/e3-dc-nutzt-intelligente-messsysteme-von-spot-my-energy-fuer-das-smart-metering/](https://www.e3dc.com/e3-dc-nutzt-intelligente-messsysteme-von-spot-my-energy-fuer-das-smart-metering/) — 4.2%
- [https://www.e3dc.com/e3-dc-und-lumenaza-bringen-prosumer-an-den-markt/](https://www.e3dc.com/e3-dc-und-lumenaza-bringen-prosumer-an-den-markt/) — 4.1%
- [https://www.e3dc.com/e3-dc-wird-mit-dem-top-brand-pv-siegel-fuer-deutschland-oesterreich-und-die-schweiz-ausgezeichnet/](https://www.e3dc.com/e3-dc-wird-mit-dem-top-brand-pv-siegel-fuer-deutschland-oesterreich-und-die-schweiz-ausgezeichnet/) — 4.0%
- [https://www.e3dc.com/eeg-novelle-2021-was-aendert-sich-fuer-den-eigenverbrauch/](https://www.e3dc.com/eeg-novelle-2021-was-aendert-sich-fuer-den-eigenverbrauch/) — 4.8%
- [https://www.e3dc.com/eigene-energie-ist-die-basis-fuer-den-erfolg/](https://www.e3dc.com/eigene-energie-ist-die-basis-fuer-den-erfolg/) — 1.8%
- [https://www.e3dc.com/eigenstrom-fuer-den-firmenwagen/](https://www.e3dc.com/eigenstrom-fuer-den-firmenwagen/) — 4.6%
- [https://www.e3dc.com/elektroautos-werden-stromspeicher-fuer-gebaeude/](https://www.e3dc.com/elektroautos-werden-stromspeicher-fuer-gebaeude/) — 4.6%
- [https://www.e3dc.com/energiemanagement/](https://www.e3dc.com/energiemanagement/) — 4.5%
- [https://www.e3dc.com/energieportal/](https://www.e3dc.com/energieportal/) — 4.4%
- [https://www.e3dc.com/erneute-auszeichnung-mit-solarprosumeraward-2023-24-in-4-kategorien/](https://www.e3dc.com/erneute-auszeichnung-mit-solarprosumeraward-2023-24-in-4-kategorien/) — 4.2%
- [https://www.e3dc.com/ertrag-einer-pv-anlage/](https://www.e3dc.com/ertrag-einer-pv-anlage/) — 2.1%
- [https://www.e3dc.com/fakten-zur-photovoltaikanlage/](https://www.e3dc.com/fakten-zur-photovoltaikanlage/) — 2.8%
- [https://www.e3dc.com/hager-group-startet-neue-business-unit-hagerenergy/](https://www.e3dc.com/hager-group-startet-neue-business-unit-hagerenergy/) — 1.9%
- [https://www.e3dc.com/hager-group-uebernimmt-energiespeicherspezialist-e3-dc/](https://www.e3dc.com/hager-group-uebernimmt-energiespeicherspezialist-e3-dc/) — 4.3%
- [https://www.e3dc.com/hausautomation/](https://www.e3dc.com/hausautomation/) — 4.6%
- [https://www.e3dc.com/hochleistungs-doppelstrings-bis-2-x-27a-im-hauskraftwerk/](https://www.e3dc.com/hochleistungs-doppelstrings-bis-2-x-27a-im-hauskraftwerk/) — 4.5%
- [https://www.e3dc.com/kostenloses-update-fuer-e3-dc-stromspeicher/](https://www.e3dc.com/kostenloses-update-fuer-e3-dc-stromspeicher/) — 3.9%
- [https://www.e3dc.com/kundenzufriedenheit-bei-e3-dc-ist-erneut-sehr-gut/](https://www.e3dc.com/kundenzufriedenheit-bei-e3-dc-ist-erneut-sehr-gut/) — 1.9%
- [https://www.e3dc.com/notstromfunktion/](https://www.e3dc.com/notstromfunktion/) — 4.4%
- [https://www.e3dc.com/nulleinspeisung-ist-top-business-model-2020/](https://www.e3dc.com/nulleinspeisung-ist-top-business-model-2020/) — 4.8%
- [https://www.e3dc.com/photovoltaik-fuer-den-eigenverbrauch/](https://www.e3dc.com/photovoltaik-fuer-den-eigenverbrauch/) — 2.0%
- [https://www.e3dc.com/photovoltaik-leistung/](https://www.e3dc.com/photovoltaik-leistung/) — 2.0%
- [https://www.e3dc.com/photovoltaik-und-waermepumpe/](https://www.e3dc.com/photovoltaik-und-waermepumpe/) — 2.0%
- [https://www.e3dc.com/pv-module/](https://www.e3dc.com/pv-module/) — 2.7%
- [https://www.e3dc.com/pv-speicher-als-smarthome-zentrale/](https://www.e3dc.com/pv-speicher-als-smarthome-zentrale/) — 4.2%
- [https://www.e3dc.com/pv-speicher-nachruesten/](https://www.e3dc.com/pv-speicher-nachruesten/) — 2.0%
- [https://www.e3dc.com/ratgeber-stromspeicher/](https://www.e3dc.com/ratgeber-stromspeicher/) — 2.7%
- [https://www.e3dc.com/ready-for-future-e3-dc-praesentiert-neue-entwicklungen/](https://www.e3dc.com/ready-for-future-e3-dc-praesentiert-neue-entwicklungen/) — 4.9%
- [https://www.e3dc.com/sektorenkopplung-von-hauskraftwerk-und-waermepumpe/](https://www.e3dc.com/sektorenkopplung-von-hauskraftwerk-und-waermepumpe/) — 4.0%
- [https://www.e3dc.com/solar-wechselrichter/](https://www.e3dc.com/solar-wechselrichter/) — 2.0%
- [https://www.e3dc.com/solarpaket-1-das-ist-jetzt-wichtig/](https://www.e3dc.com/solarpaket-1-das-ist-jetzt-wichtig/) — 4.6%
- [https://www.e3dc.com/systemtechnik/](https://www.e3dc.com/systemtechnik/) — 4.3%
- [https://www.e3dc.com/trilink-technologie-fuer-mehrfamilienhaeuser/](https://www.e3dc.com/trilink-technologie-fuer-mehrfamilienhaeuser/) — 4.1%
- [https://www.e3dc.com/waermepumpen-klimaanlagen-als-komplettloesung-fuer-winter-und-sommer/](https://www.e3dc.com/waermepumpen-klimaanlagen-als-komplettloesung-fuer-winter-und-sommer/) — 4.7%
- [https://www.e3dc.com/wie-hauskraftwerke-heute-und-morgen-360-autark-machen/](https://www.e3dc.com/wie-hauskraftwerke-heute-und-morgen-360-autark-machen/) — 4.6%

#### Duplicate meta description across pages

- Rule: `duplicate.meta_desc` · Category: Duplicate · Occurrences: 2

- [https://www.e3dc.com/ch/trilink-technologie-fuer-mehrfamilienhaeuser/](https://www.e3dc.com/ch/trilink-technologie-fuer-mehrfamilienhaeuser/) — meta description shared by 2 pages: https://www.e3dc.com/trilink-technologie-fuer-mehrfamilienhaeuser/
- [https://www.e3dc.com/trilink-technologie-fuer-mehrfamilienhaeuser/](https://www.e3dc.com/trilink-technologie-fuer-mehrfamilienhaeuser/) — meta description shared by 2 pages: https://www.e3dc.com/ch/trilink-technologie-fuer-mehrfamilienhaeuser/

#### Image filename is generic/auto-generated (missed image-search signal)

- Rule: `images.generic_filename` · Category: Images · Occurrences: 1

- [https://www.e3dc.com/hager-group-uebernimmt-energiespeicherspezialist-e3-dc/](https://www.e3dc.com/hager-group-uebernimmt-energiespeicherspezialist-e3-dc/) — 1 image(s) use a generic/auto-generated filename (e.g. IMG_1234.jpg, photo1.png, a bare UUID). Google reads the filename as a signal of image content, so rename files descriptively (hyphen-separated words) before upload.

#### Likely hero image lacks fetchpriority=high

- Rule: `images.hero_no_fetchpriority` · Category: Performance · Occurrences: 49

- [https://www.e3dc.com/](https://www.e3dc.com/) — the likely hero/LCP image (logo_dark.svg) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element.
- [https://www.e3dc.com/andreas-piepenbrink-die-photovoltaik-bietet-mehr/](https://www.e3dc.com/andreas-piepenbrink-die-photovoltaik-bietet-mehr/) — the likely hero/LCP image (logo_dark.svg) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element.
- [https://www.e3dc.com/ausgezeichnete-speichertechnologie-e3-dc-ist-best-of-german-industry/](https://www.e3dc.com/ausgezeichnete-speichertechnologie-e3-dc-ist-best-of-german-industry/) — the likely hero/LCP image (logo_dark.svg) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element.
- [https://www.e3dc.com/batteriespeicher-fuer-pv-anlage/](https://www.e3dc.com/batteriespeicher-fuer-pv-anlage/) — the likely hero/LCP image (logo_dark.svg) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element.
- [https://www.e3dc.com/batterietechnik-fuer-stromspeicher/](https://www.e3dc.com/batterietechnik-fuer-stromspeicher/) — the likely hero/LCP image (logo_dark.svg) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element.
- [https://www.e3dc.com/ch/trilink-technologie-fuer-mehrfamilienhaeuser/](https://www.e3dc.com/ch/trilink-technologie-fuer-mehrfamilienhaeuser/) — the likely hero/LCP image (logo_dark.svg) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element.
- [https://www.e3dc.com/co2-freies-heizen-e3-dc-macht-sg-ready-zum-standard/](https://www.e3dc.com/co2-freies-heizen-e3-dc-macht-sg-ready-zum-standard/) — the likely hero/LCP image (logo_dark.svg) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element.
- [https://www.e3dc.com/den-standard-fuer-klimaneutrale-gebaeude-gesetzt/](https://www.e3dc.com/den-standard-fuer-klimaneutrale-gebaeude-gesetzt/) — the likely hero/LCP image (logo_dark.svg) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element.
- [https://www.e3dc.com/der-neue-quattroporte-von-e3-dc/](https://www.e3dc.com/der-neue-quattroporte-von-e3-dc/) — the likely hero/LCP image (logo_dark.svg) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element.
- [https://www.e3dc.com/deutschland-kfw-442/](https://www.e3dc.com/deutschland-kfw-442/) — the likely hero/LCP image (logo_dark.svg) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element.
- [https://www.e3dc.com/dynamische-strompreise-mit-e3-dc-maximal-autark-und-transparent/](https://www.e3dc.com/dynamische-strompreise-mit-e3-dc-maximal-autark-und-transparent/) — the likely hero/LCP image (logo_dark.svg) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element.
- [https://www.e3dc.com/e3-dc-integriert-ostroms-dynamischen-stromtarif/](https://www.e3dc.com/e3-dc-integriert-ostroms-dynamischen-stromtarif/) — the likely hero/LCP image (logo_dark.svg) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element.
- [https://www.e3dc.com/e3-dc-ist-offizieller-teampartner-der-deutschen-ski-nationalmannschaft-alpin/](https://www.e3dc.com/e3-dc-ist-offizieller-teampartner-der-deutschen-ski-nationalmannschaft-alpin/) — the likely hero/LCP image (logo_dark.svg) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element.
- [https://www.e3dc.com/e3-dc-nutzt-intelligente-messsysteme-von-spot-my-energy-fuer-das-smart-metering/](https://www.e3dc.com/e3-dc-nutzt-intelligente-messsysteme-von-spot-my-energy-fuer-das-smart-metering/) — the likely hero/LCP image (logo_dark.svg) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element.
- [https://www.e3dc.com/e3-dc-standpunkte-zu-aktuellen-energiepolitischen-fragen/](https://www.e3dc.com/e3-dc-standpunkte-zu-aktuellen-energiepolitischen-fragen/) — the likely hero/LCP image (logo_dark.svg) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element.
- [https://www.e3dc.com/e3-dc-und-lumenaza-bringen-prosumer-an-den-markt/](https://www.e3dc.com/e3-dc-und-lumenaza-bringen-prosumer-an-den-markt/) — the likely hero/LCP image (logo_dark.svg) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element.
- [https://www.e3dc.com/e3-dc-wird-mit-dem-top-brand-pv-siegel-fuer-deutschland-oesterreich-und-die-schweiz-ausgezeichnet/](https://www.e3dc.com/e3-dc-wird-mit-dem-top-brand-pv-siegel-fuer-deutschland-oesterreich-und-die-schweiz-ausgezeichnet/) — the likely hero/LCP image (logo_dark.svg) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element.
- [https://www.e3dc.com/eeg-novelle-2021-was-aendert-sich-fuer-den-eigenverbrauch/](https://www.e3dc.com/eeg-novelle-2021-was-aendert-sich-fuer-den-eigenverbrauch/) — the likely hero/LCP image (logo_dark.svg) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element.
- [https://www.e3dc.com/eigene-energie-ist-die-basis-fuer-den-erfolg/](https://www.e3dc.com/eigene-energie-ist-die-basis-fuer-den-erfolg/) — the likely hero/LCP image (logo_dark.svg) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element.
- [https://www.e3dc.com/eigenstrom-fuer-den-firmenwagen/](https://www.e3dc.com/eigenstrom-fuer-den-firmenwagen/) — the likely hero/LCP image (logo_dark.svg) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element.
- [https://www.e3dc.com/elektroautos-werden-stromspeicher-fuer-gebaeude/](https://www.e3dc.com/elektroautos-werden-stromspeicher-fuer-gebaeude/) — the likely hero/LCP image (logo_dark.svg) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element.
- [https://www.e3dc.com/energiemanagement/](https://www.e3dc.com/energiemanagement/) — the likely hero/LCP image (logo_dark.svg) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element.
- [https://www.e3dc.com/energieportal/](https://www.e3dc.com/energieportal/) — the likely hero/LCP image (logo_dark.svg) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element.
- [https://www.e3dc.com/erneute-auszeichnung-mit-solarprosumeraward-2023-24-in-4-kategorien/](https://www.e3dc.com/erneute-auszeichnung-mit-solarprosumeraward-2023-24-in-4-kategorien/) — the likely hero/LCP image (logo_dark.svg) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element.
- [https://www.e3dc.com/ertrag-einer-pv-anlage/](https://www.e3dc.com/ertrag-einer-pv-anlage/) — the likely hero/LCP image (logo_dark.svg) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element.
- [https://www.e3dc.com/fakten-zur-photovoltaikanlage/](https://www.e3dc.com/fakten-zur-photovoltaikanlage/) — the likely hero/LCP image (logo_dark.svg) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element.
- [https://www.e3dc.com/hager-group-startet-neue-business-unit-hagerenergy/](https://www.e3dc.com/hager-group-startet-neue-business-unit-hagerenergy/) — the likely hero/LCP image (logo_dark.svg) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element.
- [https://www.e3dc.com/hager-group-uebernimmt-energiespeicherspezialist-e3-dc/](https://www.e3dc.com/hager-group-uebernimmt-energiespeicherspezialist-e3-dc/) — the likely hero/LCP image (logo_dark.svg) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element.
- [https://www.e3dc.com/hausautomation/](https://www.e3dc.com/hausautomation/) — the likely hero/LCP image (logo_dark.svg) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element.
- [https://www.e3dc.com/hochleistungs-doppelstrings-bis-2-x-27a-im-hauskraftwerk/](https://www.e3dc.com/hochleistungs-doppelstrings-bis-2-x-27a-im-hauskraftwerk/) — the likely hero/LCP image (logo_dark.svg) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element.
- [https://www.e3dc.com/kostenloses-update-fuer-e3-dc-stromspeicher/](https://www.e3dc.com/kostenloses-update-fuer-e3-dc-stromspeicher/) — the likely hero/LCP image (logo_dark.svg) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element.
- [https://www.e3dc.com/kundenzufriedenheit-bei-e3-dc-ist-erneut-sehr-gut/](https://www.e3dc.com/kundenzufriedenheit-bei-e3-dc-ist-erneut-sehr-gut/) — the likely hero/LCP image (logo_dark.svg) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element.
- [https://www.e3dc.com/notstromfunktion/](https://www.e3dc.com/notstromfunktion/) — the likely hero/LCP image (logo_dark.svg) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element.
- [https://www.e3dc.com/nulleinspeisung-ist-top-business-model-2020/](https://www.e3dc.com/nulleinspeisung-ist-top-business-model-2020/) — the likely hero/LCP image (logo_dark.svg) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element.
- [https://www.e3dc.com/photovoltaik-fuer-den-eigenverbrauch/](https://www.e3dc.com/photovoltaik-fuer-den-eigenverbrauch/) — the likely hero/LCP image (logo_dark.svg) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element.
- [https://www.e3dc.com/photovoltaik-leistung/](https://www.e3dc.com/photovoltaik-leistung/) — the likely hero/LCP image (logo_dark.svg) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element.
- [https://www.e3dc.com/photovoltaik-und-waermepumpe/](https://www.e3dc.com/photovoltaik-und-waermepumpe/) — the likely hero/LCP image (logo_dark.svg) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element.
- [https://www.e3dc.com/pv-module/](https://www.e3dc.com/pv-module/) — the likely hero/LCP image (logo_dark.svg) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element.
- [https://www.e3dc.com/pv-speicher-als-smarthome-zentrale/](https://www.e3dc.com/pv-speicher-als-smarthome-zentrale/) — the likely hero/LCP image (logo_dark.svg) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element.
- [https://www.e3dc.com/pv-speicher-nachruesten/](https://www.e3dc.com/pv-speicher-nachruesten/) — the likely hero/LCP image (logo_dark.svg) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element.
- [https://www.e3dc.com/ratgeber-stromspeicher/](https://www.e3dc.com/ratgeber-stromspeicher/) — the likely hero/LCP image (logo_dark.svg) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element.
- [https://www.e3dc.com/ready-for-future-e3-dc-praesentiert-neue-entwicklungen/](https://www.e3dc.com/ready-for-future-e3-dc-praesentiert-neue-entwicklungen/) — the likely hero/LCP image (logo_dark.svg) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element.
- [https://www.e3dc.com/sektorenkopplung-von-hauskraftwerk-und-waermepumpe/](https://www.e3dc.com/sektorenkopplung-von-hauskraftwerk-und-waermepumpe/) — the likely hero/LCP image (logo_dark.svg) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element.
- [https://www.e3dc.com/solar-wechselrichter/](https://www.e3dc.com/solar-wechselrichter/) — the likely hero/LCP image (logo_dark.svg) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element.
- [https://www.e3dc.com/solarpaket-1-das-ist-jetzt-wichtig/](https://www.e3dc.com/solarpaket-1-das-ist-jetzt-wichtig/) — the likely hero/LCP image (logo_dark.svg) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element.
- [https://www.e3dc.com/systemtechnik/](https://www.e3dc.com/systemtechnik/) — the likely hero/LCP image (logo_dark.svg) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element.
- [https://www.e3dc.com/trilink-technologie-fuer-mehrfamilienhaeuser/](https://www.e3dc.com/trilink-technologie-fuer-mehrfamilienhaeuser/) — the likely hero/LCP image (logo_dark.svg) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element.
- [https://www.e3dc.com/waermepumpen-klimaanlagen-als-komplettloesung-fuer-winter-und-sommer/](https://www.e3dc.com/waermepumpen-klimaanlagen-als-komplettloesung-fuer-winter-und-sommer/) — the likely hero/LCP image (logo_dark.svg) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element.
- [https://www.e3dc.com/wie-hauskraftwerke-heute-und-morgen-360-autark-machen/](https://www.e3dc.com/wie-hauskraftwerke-heute-und-morgen-360-autark-machen/) — the likely hero/LCP image (logo_dark.svg) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element.

#### Images without width/height (layout shift / CLS)

- Rule: `images.missing_dimensions` · Category: Images · Occurrences: 49

- [https://www.e3dc.com/](https://www.e3dc.com/) — 3 of 82 images without width/height
- [https://www.e3dc.com/andreas-piepenbrink-die-photovoltaik-bietet-mehr/](https://www.e3dc.com/andreas-piepenbrink-die-photovoltaik-bietet-mehr/) — 4 of 17 images without width/height
- [https://www.e3dc.com/ausgezeichnete-speichertechnologie-e3-dc-ist-best-of-german-industry/](https://www.e3dc.com/ausgezeichnete-speichertechnologie-e3-dc-ist-best-of-german-industry/) — 2 of 50 images without width/height
- [https://www.e3dc.com/batteriespeicher-fuer-pv-anlage/](https://www.e3dc.com/batteriespeicher-fuer-pv-anlage/) — 2 of 46 images without width/height
- [https://www.e3dc.com/batterietechnik-fuer-stromspeicher/](https://www.e3dc.com/batterietechnik-fuer-stromspeicher/) — 2 of 46 images without width/height
- [https://www.e3dc.com/ch/trilink-technologie-fuer-mehrfamilienhaeuser/](https://www.e3dc.com/ch/trilink-technologie-fuer-mehrfamilienhaeuser/) — 5 of 18 images without width/height
- [https://www.e3dc.com/co2-freies-heizen-e3-dc-macht-sg-ready-zum-standard/](https://www.e3dc.com/co2-freies-heizen-e3-dc-macht-sg-ready-zum-standard/) — 2 of 52 images without width/height
- [https://www.e3dc.com/den-standard-fuer-klimaneutrale-gebaeude-gesetzt/](https://www.e3dc.com/den-standard-fuer-klimaneutrale-gebaeude-gesetzt/) — 4 of 18 images without width/height
- [https://www.e3dc.com/der-neue-quattroporte-von-e3-dc/](https://www.e3dc.com/der-neue-quattroporte-von-e3-dc/) — 4 of 17 images without width/height
- [https://www.e3dc.com/deutschland-kfw-442/](https://www.e3dc.com/deutschland-kfw-442/) — 2 of 46 images without width/height
- [https://www.e3dc.com/dynamische-strompreise-mit-e3-dc-maximal-autark-und-transparent/](https://www.e3dc.com/dynamische-strompreise-mit-e3-dc-maximal-autark-und-transparent/) — 4 of 17 images without width/height
- [https://www.e3dc.com/e3-dc-integriert-ostroms-dynamischen-stromtarif/](https://www.e3dc.com/e3-dc-integriert-ostroms-dynamischen-stromtarif/) — 4 of 18 images without width/height
- [https://www.e3dc.com/e3-dc-ist-offizieller-teampartner-der-deutschen-ski-nationalmannschaft-alpin/](https://www.e3dc.com/e3-dc-ist-offizieller-teampartner-der-deutschen-ski-nationalmannschaft-alpin/) — 4 of 18 images without width/height
- [https://www.e3dc.com/e3-dc-nutzt-intelligente-messsysteme-von-spot-my-energy-fuer-das-smart-metering/](https://www.e3dc.com/e3-dc-nutzt-intelligente-messsysteme-von-spot-my-energy-fuer-das-smart-metering/) — 4 of 18 images without width/height
- [https://www.e3dc.com/e3-dc-standpunkte-zu-aktuellen-energiepolitischen-fragen/](https://www.e3dc.com/e3-dc-standpunkte-zu-aktuellen-energiepolitischen-fragen/) — 4 of 17 images without width/height
- [https://www.e3dc.com/e3-dc-und-lumenaza-bringen-prosumer-an-den-markt/](https://www.e3dc.com/e3-dc-und-lumenaza-bringen-prosumer-an-den-markt/) — 4 of 17 images without width/height
- [https://www.e3dc.com/e3-dc-wird-mit-dem-top-brand-pv-siegel-fuer-deutschland-oesterreich-und-die-schweiz-ausgezeichnet/](https://www.e3dc.com/e3-dc-wird-mit-dem-top-brand-pv-siegel-fuer-deutschland-oesterreich-und-die-schweiz-ausgezeichnet/) — 4 of 18 images without width/height
- [https://www.e3dc.com/eeg-novelle-2021-was-aendert-sich-fuer-den-eigenverbrauch/](https://www.e3dc.com/eeg-novelle-2021-was-aendert-sich-fuer-den-eigenverbrauch/) — 5 of 18 images without width/height
- [https://www.e3dc.com/eigene-energie-ist-die-basis-fuer-den-erfolg/](https://www.e3dc.com/eigene-energie-ist-die-basis-fuer-den-erfolg/) — 2 of 46 images without width/height
- [https://www.e3dc.com/eigenstrom-fuer-den-firmenwagen/](https://www.e3dc.com/eigenstrom-fuer-den-firmenwagen/) — 4 of 18 images without width/height
- [https://www.e3dc.com/elektroautos-werden-stromspeicher-fuer-gebaeude/](https://www.e3dc.com/elektroautos-werden-stromspeicher-fuer-gebaeude/) — 4 of 19 images without width/height
- [https://www.e3dc.com/energiemanagement/](https://www.e3dc.com/energiemanagement/) — 3 of 11 images without width/height
- [https://www.e3dc.com/energieportal/](https://www.e3dc.com/energieportal/) — 3 of 11 images without width/height
- [https://www.e3dc.com/erneute-auszeichnung-mit-solarprosumeraward-2023-24-in-4-kategorien/](https://www.e3dc.com/erneute-auszeichnung-mit-solarprosumeraward-2023-24-in-4-kategorien/) — 4 of 17 images without width/height
- [https://www.e3dc.com/ertrag-einer-pv-anlage/](https://www.e3dc.com/ertrag-einer-pv-anlage/) — 2 of 46 images without width/height
- [https://www.e3dc.com/fakten-zur-photovoltaikanlage/](https://www.e3dc.com/fakten-zur-photovoltaikanlage/) — 2 of 46 images without width/height
- [https://www.e3dc.com/hager-group-startet-neue-business-unit-hagerenergy/](https://www.e3dc.com/hager-group-startet-neue-business-unit-hagerenergy/) — 2 of 46 images without width/height
- [https://www.e3dc.com/hager-group-uebernimmt-energiespeicherspezialist-e3-dc/](https://www.e3dc.com/hager-group-uebernimmt-energiespeicherspezialist-e3-dc/) — 5 of 18 images without width/height
- [https://www.e3dc.com/hausautomation/](https://www.e3dc.com/hausautomation/) — 3 of 11 images without width/height
- [https://www.e3dc.com/hochleistungs-doppelstrings-bis-2-x-27a-im-hauskraftwerk/](https://www.e3dc.com/hochleistungs-doppelstrings-bis-2-x-27a-im-hauskraftwerk/) — 4 of 18 images without width/height
- [https://www.e3dc.com/kostenloses-update-fuer-e3-dc-stromspeicher/](https://www.e3dc.com/kostenloses-update-fuer-e3-dc-stromspeicher/) — 5 of 18 images without width/height
- [https://www.e3dc.com/kundenzufriedenheit-bei-e3-dc-ist-erneut-sehr-gut/](https://www.e3dc.com/kundenzufriedenheit-bei-e3-dc-ist-erneut-sehr-gut/) — 2 of 46 images without width/height
- [https://www.e3dc.com/notstromfunktion/](https://www.e3dc.com/notstromfunktion/) — 3 of 11 images without width/height
- [https://www.e3dc.com/nulleinspeisung-ist-top-business-model-2020/](https://www.e3dc.com/nulleinspeisung-ist-top-business-model-2020/) — 5 of 18 images without width/height
- [https://www.e3dc.com/photovoltaik-fuer-den-eigenverbrauch/](https://www.e3dc.com/photovoltaik-fuer-den-eigenverbrauch/) — 2 of 46 images without width/height
- [https://www.e3dc.com/photovoltaik-leistung/](https://www.e3dc.com/photovoltaik-leistung/) — 2 of 46 images without width/height
- [https://www.e3dc.com/photovoltaik-und-waermepumpe/](https://www.e3dc.com/photovoltaik-und-waermepumpe/) — 2 of 46 images without width/height
- [https://www.e3dc.com/pv-module/](https://www.e3dc.com/pv-module/) — 2 of 46 images without width/height
- [https://www.e3dc.com/pv-speicher-als-smarthome-zentrale/](https://www.e3dc.com/pv-speicher-als-smarthome-zentrale/) — 4 of 17 images without width/height
- [https://www.e3dc.com/pv-speicher-nachruesten/](https://www.e3dc.com/pv-speicher-nachruesten/) — 2 of 46 images without width/height
- [https://www.e3dc.com/ratgeber-stromspeicher/](https://www.e3dc.com/ratgeber-stromspeicher/) — 2 of 46 images without width/height
- [https://www.e3dc.com/ready-for-future-e3-dc-praesentiert-neue-entwicklungen/](https://www.e3dc.com/ready-for-future-e3-dc-praesentiert-neue-entwicklungen/) — 4 of 19 images without width/height
- [https://www.e3dc.com/sektorenkopplung-von-hauskraftwerk-und-waermepumpe/](https://www.e3dc.com/sektorenkopplung-von-hauskraftwerk-und-waermepumpe/) — 7 of 20 images without width/height
- [https://www.e3dc.com/solar-wechselrichter/](https://www.e3dc.com/solar-wechselrichter/) — 2 of 48 images without width/height
- [https://www.e3dc.com/solarpaket-1-das-ist-jetzt-wichtig/](https://www.e3dc.com/solarpaket-1-das-ist-jetzt-wichtig/) — 4 of 17 images without width/height
- [https://www.e3dc.com/systemtechnik/](https://www.e3dc.com/systemtechnik/) — 3 of 11 images without width/height
- [https://www.e3dc.com/trilink-technologie-fuer-mehrfamilienhaeuser/](https://www.e3dc.com/trilink-technologie-fuer-mehrfamilienhaeuser/) — 5 of 18 images without width/height
- [https://www.e3dc.com/waermepumpen-klimaanlagen-als-komplettloesung-fuer-winter-und-sommer/](https://www.e3dc.com/waermepumpen-klimaanlagen-als-komplettloesung-fuer-winter-und-sommer/) — 4 of 18 images without width/height
- [https://www.e3dc.com/wie-hauskraftwerke-heute-und-morgen-360-autark-machen/](https://www.e3dc.com/wie-hauskraftwerke-heute-und-morgen-360-autark-machen/) — 4 of 18 images without width/height

#### Internal link has no anchor text / accessible name

- Rule: `links.no_anchor_text` · Category: Links · Occurrences: 6

- [https://www.e3dc.com/](https://www.e3dc.com/) — 3 internal link(s) have no anchor text, aria-label, or image alt — they pass no keyword signal and are unusable to screen readers. Add descriptive text or an aria-label.
- [https://www.e3dc.com/den-standard-fuer-klimaneutrale-gebaeude-gesetzt/](https://www.e3dc.com/den-standard-fuer-klimaneutrale-gebaeude-gesetzt/) — 1 internal link(s) have no anchor text, aria-label, or image alt — they pass no keyword signal and are unusable to screen readers. Add descriptive text or an aria-label.
- [https://www.e3dc.com/eigenstrom-fuer-den-firmenwagen/](https://www.e3dc.com/eigenstrom-fuer-den-firmenwagen/) — 1 internal link(s) have no anchor text, aria-label, or image alt — they pass no keyword signal and are unusable to screen readers. Add descriptive text or an aria-label.
- [https://www.e3dc.com/hochleistungs-doppelstrings-bis-2-x-27a-im-hauskraftwerk/](https://www.e3dc.com/hochleistungs-doppelstrings-bis-2-x-27a-im-hauskraftwerk/) — 1 internal link(s) have no anchor text, aria-label, or image alt — they pass no keyword signal and are unusable to screen readers. Add descriptive text or an aria-label.
- [https://www.e3dc.com/waermepumpen-klimaanlagen-als-komplettloesung-fuer-winter-und-sommer/](https://www.e3dc.com/waermepumpen-klimaanlagen-als-komplettloesung-fuer-winter-und-sommer/) — 1 internal link(s) have no anchor text, aria-label, or image alt — they pass no keyword signal and are unusable to screen readers. Add descriptive text or an aria-label.
- [https://www.e3dc.com/wie-hauskraftwerke-heute-und-morgen-360-autark-machen/](https://www.e3dc.com/wie-hauskraftwerke-heute-und-morgen-360-autark-machen/) — 1 internal link(s) have no anchor text, aria-label, or image alt — they pass no keyword signal and are unusable to screen readers. Add descriptive text or an aria-label.

#### Meta description too long

- Rule: `meta_desc.too_long` · Category: Meta Description · Occurrences: 7

- [https://www.e3dc.com/ch/trilink-technologie-fuer-mehrfamilienhaeuser/](https://www.e3dc.com/ch/trilink-technologie-fuer-mehrfamilienhaeuser/) — 169 chars
- [https://www.e3dc.com/der-neue-quattroporte-von-e3-dc/](https://www.e3dc.com/der-neue-quattroporte-von-e3-dc/) — 196 chars
- [https://www.e3dc.com/e3-dc-standpunkte-zu-aktuellen-energiepolitischen-fragen/](https://www.e3dc.com/e3-dc-standpunkte-zu-aktuellen-energiepolitischen-fragen/) — 193 chars
- [https://www.e3dc.com/hager-group-uebernimmt-energiespeicherspezialist-e3-dc/](https://www.e3dc.com/hager-group-uebernimmt-energiespeicherspezialist-e3-dc/) — 167 chars
- [https://www.e3dc.com/kostenloses-update-fuer-e3-dc-stromspeicher/](https://www.e3dc.com/kostenloses-update-fuer-e3-dc-stromspeicher/) — 186 chars
- [https://www.e3dc.com/ready-for-future-e3-dc-praesentiert-neue-entwicklungen/](https://www.e3dc.com/ready-for-future-e3-dc-praesentiert-neue-entwicklungen/) — 178 chars
- [https://www.e3dc.com/trilink-technologie-fuer-mehrfamilienhaeuser/](https://www.e3dc.com/trilink-technologie-fuer-mehrfamilienhaeuser/) — 169 chars

#### Missing Open Graph tags

- Rule: `og.missing` · Category: Social · Occurrences: 27

- [https://www.e3dc.com/](https://www.e3dc.com/) — og:image
- [https://www.e3dc.com/ausgezeichnete-speichertechnologie-e3-dc-ist-best-of-german-industry/](https://www.e3dc.com/ausgezeichnete-speichertechnologie-e3-dc-ist-best-of-german-industry/) — og:description
- [https://www.e3dc.com/batteriespeicher-fuer-pv-anlage/](https://www.e3dc.com/batteriespeicher-fuer-pv-anlage/) — og:description
- [https://www.e3dc.com/batterietechnik-fuer-stromspeicher/](https://www.e3dc.com/batterietechnik-fuer-stromspeicher/) — og:description
- [https://www.e3dc.com/co2-freies-heizen-e3-dc-macht-sg-ready-zum-standard/](https://www.e3dc.com/co2-freies-heizen-e3-dc-macht-sg-ready-zum-standard/) — og:description
- [https://www.e3dc.com/der-neue-quattroporte-von-e3-dc/](https://www.e3dc.com/der-neue-quattroporte-von-e3-dc/) — og:image
- [https://www.e3dc.com/deutschland-kfw-442/](https://www.e3dc.com/deutschland-kfw-442/) — og:description
- [https://www.e3dc.com/e3-dc-integriert-ostroms-dynamischen-stromtarif/](https://www.e3dc.com/e3-dc-integriert-ostroms-dynamischen-stromtarif/) — og:description
- [https://www.e3dc.com/e3-dc-ist-offizieller-teampartner-der-deutschen-ski-nationalmannschaft-alpin/](https://www.e3dc.com/e3-dc-ist-offizieller-teampartner-der-deutschen-ski-nationalmannschaft-alpin/) — og:description
- [https://www.e3dc.com/e3-dc-nutzt-intelligente-messsysteme-von-spot-my-energy-fuer-das-smart-metering/](https://www.e3dc.com/e3-dc-nutzt-intelligente-messsysteme-von-spot-my-energy-fuer-das-smart-metering/) — og:description
- [https://www.e3dc.com/e3-dc-wird-mit-dem-top-brand-pv-siegel-fuer-deutschland-oesterreich-und-die-schweiz-ausgezeichnet/](https://www.e3dc.com/e3-dc-wird-mit-dem-top-brand-pv-siegel-fuer-deutschland-oesterreich-und-die-schweiz-ausgezeichnet/) — og:description
- [https://www.e3dc.com/eigene-energie-ist-die-basis-fuer-den-erfolg/](https://www.e3dc.com/eigene-energie-ist-die-basis-fuer-den-erfolg/) — og:description
- [https://www.e3dc.com/elektroautos-werden-stromspeicher-fuer-gebaeude/](https://www.e3dc.com/elektroautos-werden-stromspeicher-fuer-gebaeude/) — og:description
- [https://www.e3dc.com/erneute-auszeichnung-mit-solarprosumeraward-2023-24-in-4-kategorien/](https://www.e3dc.com/erneute-auszeichnung-mit-solarprosumeraward-2023-24-in-4-kategorien/) — og:description
- [https://www.e3dc.com/ertrag-einer-pv-anlage/](https://www.e3dc.com/ertrag-einer-pv-anlage/) — og:description
- [https://www.e3dc.com/fakten-zur-photovoltaikanlage/](https://www.e3dc.com/fakten-zur-photovoltaikanlage/) — og:description
- [https://www.e3dc.com/hager-group-startet-neue-business-unit-hagerenergy/](https://www.e3dc.com/hager-group-startet-neue-business-unit-hagerenergy/) — og:description
- [https://www.e3dc.com/kundenzufriedenheit-bei-e3-dc-ist-erneut-sehr-gut/](https://www.e3dc.com/kundenzufriedenheit-bei-e3-dc-ist-erneut-sehr-gut/) — og:description
- [https://www.e3dc.com/photovoltaik-fuer-den-eigenverbrauch/](https://www.e3dc.com/photovoltaik-fuer-den-eigenverbrauch/) — og:description
- [https://www.e3dc.com/photovoltaik-leistung/](https://www.e3dc.com/photovoltaik-leistung/) — og:description
- [https://www.e3dc.com/photovoltaik-und-waermepumpe/](https://www.e3dc.com/photovoltaik-und-waermepumpe/) — og:description
- [https://www.e3dc.com/pv-module/](https://www.e3dc.com/pv-module/) — og:description
- [https://www.e3dc.com/pv-speicher-als-smarthome-zentrale/](https://www.e3dc.com/pv-speicher-als-smarthome-zentrale/) — og:image
- [https://www.e3dc.com/pv-speicher-nachruesten/](https://www.e3dc.com/pv-speicher-nachruesten/) — og:description
- [https://www.e3dc.com/ratgeber-stromspeicher/](https://www.e3dc.com/ratgeber-stromspeicher/) — og:description
- [https://www.e3dc.com/solar-wechselrichter/](https://www.e3dc.com/solar-wechselrichter/) — og:description
- [https://www.e3dc.com/waermepumpen-klimaanlagen-als-komplettloesung-fuer-winter-und-sommer/](https://www.e3dc.com/waermepumpen-klimaanlagen-als-komplettloesung-fuer-winter-und-sommer/) — og:description

#### Large DOM (over 1500 elements) slows rendering & interaction

- Rule: `perf.dom_size_large` · Category: Performance · Occurrences: 32

- [https://www.e3dc.com/](https://www.e3dc.com/) — the page has 1982 DOM elements (recommended maximum is around 1500) — a large DOM increases style-recalculation, layout and paint cost, hurting LCP and INP. Flatten deep nesting, paginate long lists/tables, and lazy-render off-screen elements.
- [https://www.e3dc.com/andreas-piepenbrink-die-photovoltaik-bietet-mehr/](https://www.e3dc.com/andreas-piepenbrink-die-photovoltaik-bietet-mehr/) — the page has 3614 DOM elements (recommended maximum is around 1500) — a large DOM increases style-recalculation, layout and paint cost, hurting LCP and INP. Flatten deep nesting, paginate long lists/tables, and lazy-render off-screen elements.
- [https://www.e3dc.com/ch/trilink-technologie-fuer-mehrfamilienhaeuser/](https://www.e3dc.com/ch/trilink-technologie-fuer-mehrfamilienhaeuser/) — the page has 3623 DOM elements (recommended maximum is around 1500) — a large DOM increases style-recalculation, layout and paint cost, hurting LCP and INP. Flatten deep nesting, paginate long lists/tables, and lazy-render off-screen elements.
- [https://www.e3dc.com/den-standard-fuer-klimaneutrale-gebaeude-gesetzt/](https://www.e3dc.com/den-standard-fuer-klimaneutrale-gebaeude-gesetzt/) — the page has 3621 DOM elements (recommended maximum is around 1500) — a large DOM increases style-recalculation, layout and paint cost, hurting LCP and INP. Flatten deep nesting, paginate long lists/tables, and lazy-render off-screen elements.
- [https://www.e3dc.com/der-neue-quattroporte-von-e3-dc/](https://www.e3dc.com/der-neue-quattroporte-von-e3-dc/) — the page has 3618 DOM elements (recommended maximum is around 1500) — a large DOM increases style-recalculation, layout and paint cost, hurting LCP and INP. Flatten deep nesting, paginate long lists/tables, and lazy-render off-screen elements.
- [https://www.e3dc.com/dynamische-strompreise-mit-e3-dc-maximal-autark-und-transparent/](https://www.e3dc.com/dynamische-strompreise-mit-e3-dc-maximal-autark-und-transparent/) — the page has 3619 DOM elements (recommended maximum is around 1500) — a large DOM increases style-recalculation, layout and paint cost, hurting LCP and INP. Flatten deep nesting, paginate long lists/tables, and lazy-render off-screen elements.
- [https://www.e3dc.com/e3-dc-integriert-ostroms-dynamischen-stromtarif/](https://www.e3dc.com/e3-dc-integriert-ostroms-dynamischen-stromtarif/) — the page has 3652 DOM elements (recommended maximum is around 1500) — a large DOM increases style-recalculation, layout and paint cost, hurting LCP and INP. Flatten deep nesting, paginate long lists/tables, and lazy-render off-screen elements.
- [https://www.e3dc.com/e3-dc-ist-offizieller-teampartner-der-deutschen-ski-nationalmannschaft-alpin/](https://www.e3dc.com/e3-dc-ist-offizieller-teampartner-der-deutschen-ski-nationalmannschaft-alpin/) — the page has 3661 DOM elements (recommended maximum is around 1500) — a large DOM increases style-recalculation, layout and paint cost, hurting LCP and INP. Flatten deep nesting, paginate long lists/tables, and lazy-render off-screen elements.
- [https://www.e3dc.com/e3-dc-nutzt-intelligente-messsysteme-von-spot-my-energy-fuer-das-smart-metering/](https://www.e3dc.com/e3-dc-nutzt-intelligente-messsysteme-von-spot-my-energy-fuer-das-smart-metering/) — the page has 3650 DOM elements (recommended maximum is around 1500) — a large DOM increases style-recalculation, layout and paint cost, hurting LCP and INP. Flatten deep nesting, paginate long lists/tables, and lazy-render off-screen elements.
- [https://www.e3dc.com/e3-dc-standpunkte-zu-aktuellen-energiepolitischen-fragen/](https://www.e3dc.com/e3-dc-standpunkte-zu-aktuellen-energiepolitischen-fragen/) — the page has 3683 DOM elements (recommended maximum is around 1500) — a large DOM increases style-recalculation, layout and paint cost, hurting LCP and INP. Flatten deep nesting, paginate long lists/tables, and lazy-render off-screen elements.
- [https://www.e3dc.com/e3-dc-und-lumenaza-bringen-prosumer-an-den-markt/](https://www.e3dc.com/e3-dc-und-lumenaza-bringen-prosumer-an-den-markt/) — the page has 3621 DOM elements (recommended maximum is around 1500) — a large DOM increases style-recalculation, layout and paint cost, hurting LCP and INP. Flatten deep nesting, paginate long lists/tables, and lazy-render off-screen elements.
- [https://www.e3dc.com/e3-dc-wird-mit-dem-top-brand-pv-siegel-fuer-deutschland-oesterreich-und-die-schweiz-ausgezeichnet/](https://www.e3dc.com/e3-dc-wird-mit-dem-top-brand-pv-siegel-fuer-deutschland-oesterreich-und-die-schweiz-ausgezeichnet/) — the page has 3636 DOM elements (recommended maximum is around 1500) — a large DOM increases style-recalculation, layout and paint cost, hurting LCP and INP. Flatten deep nesting, paginate long lists/tables, and lazy-render off-screen elements.
- [https://www.e3dc.com/eeg-novelle-2021-was-aendert-sich-fuer-den-eigenverbrauch/](https://www.e3dc.com/eeg-novelle-2021-was-aendert-sich-fuer-den-eigenverbrauch/) — the page has 4041 DOM elements (recommended maximum is around 1500) — a large DOM increases style-recalculation, layout and paint cost, hurting LCP and INP. Flatten deep nesting, paginate long lists/tables, and lazy-render off-screen elements.
- [https://www.e3dc.com/eigenstrom-fuer-den-firmenwagen/](https://www.e3dc.com/eigenstrom-fuer-den-firmenwagen/) — the page has 3626 DOM elements (recommended maximum is around 1500) — a large DOM increases style-recalculation, layout and paint cost, hurting LCP and INP. Flatten deep nesting, paginate long lists/tables, and lazy-render off-screen elements.
- [https://www.e3dc.com/elektroautos-werden-stromspeicher-fuer-gebaeude/](https://www.e3dc.com/elektroautos-werden-stromspeicher-fuer-gebaeude/) — the page has 3666 DOM elements (recommended maximum is around 1500) — a large DOM increases style-recalculation, layout and paint cost, hurting LCP and INP. Flatten deep nesting, paginate long lists/tables, and lazy-render off-screen elements.
- [https://www.e3dc.com/energiemanagement/](https://www.e3dc.com/energiemanagement/) — the page has 4086 DOM elements (recommended maximum is around 1500) — a large DOM increases style-recalculation, layout and paint cost, hurting LCP and INP. Flatten deep nesting, paginate long lists/tables, and lazy-render off-screen elements.
- [https://www.e3dc.com/energieportal/](https://www.e3dc.com/energieportal/) — the page has 4045 DOM elements (recommended maximum is around 1500) — a large DOM increases style-recalculation, layout and paint cost, hurting LCP and INP. Flatten deep nesting, paginate long lists/tables, and lazy-render off-screen elements.
- [https://www.e3dc.com/erneute-auszeichnung-mit-solarprosumeraward-2023-24-in-4-kategorien/](https://www.e3dc.com/erneute-auszeichnung-mit-solarprosumeraward-2023-24-in-4-kategorien/) — the page has 3638 DOM elements (recommended maximum is around 1500) — a large DOM increases style-recalculation, layout and paint cost, hurting LCP and INP. Flatten deep nesting, paginate long lists/tables, and lazy-render off-screen elements.
- [https://www.e3dc.com/hager-group-uebernimmt-energiespeicherspezialist-e3-dc/](https://www.e3dc.com/hager-group-uebernimmt-energiespeicherspezialist-e3-dc/) — the page has 3630 DOM elements (recommended maximum is around 1500) — a large DOM increases style-recalculation, layout and paint cost, hurting LCP and INP. Flatten deep nesting, paginate long lists/tables, and lazy-render off-screen elements.
- [https://www.e3dc.com/hausautomation/](https://www.e3dc.com/hausautomation/) — the page has 4086 DOM elements (recommended maximum is around 1500) — a large DOM increases style-recalculation, layout and paint cost, hurting LCP and INP. Flatten deep nesting, paginate long lists/tables, and lazy-render off-screen elements.
- [https://www.e3dc.com/hochleistungs-doppelstrings-bis-2-x-27a-im-hauskraftwerk/](https://www.e3dc.com/hochleistungs-doppelstrings-bis-2-x-27a-im-hauskraftwerk/) — the page has 3982 DOM elements (recommended maximum is around 1500) — a large DOM increases style-recalculation, layout and paint cost, hurting LCP and INP. Flatten deep nesting, paginate long lists/tables, and lazy-render off-screen elements.
- [https://www.e3dc.com/kostenloses-update-fuer-e3-dc-stromspeicher/](https://www.e3dc.com/kostenloses-update-fuer-e3-dc-stromspeicher/) — the page has 3624 DOM elements (recommended maximum is around 1500) — a large DOM increases style-recalculation, layout and paint cost, hurting LCP and INP. Flatten deep nesting, paginate long lists/tables, and lazy-render off-screen elements.
- [https://www.e3dc.com/notstromfunktion/](https://www.e3dc.com/notstromfunktion/) — the page has 4068 DOM elements (recommended maximum is around 1500) — a large DOM increases style-recalculation, layout and paint cost, hurting LCP and INP. Flatten deep nesting, paginate long lists/tables, and lazy-render off-screen elements.
- [https://www.e3dc.com/nulleinspeisung-ist-top-business-model-2020/](https://www.e3dc.com/nulleinspeisung-ist-top-business-model-2020/) — the page has 4068 DOM elements (recommended maximum is around 1500) — a large DOM increases style-recalculation, layout and paint cost, hurting LCP and INP. Flatten deep nesting, paginate long lists/tables, and lazy-render off-screen elements.
- [https://www.e3dc.com/pv-speicher-als-smarthome-zentrale/](https://www.e3dc.com/pv-speicher-als-smarthome-zentrale/) — the page has 3634 DOM elements (recommended maximum is around 1500) — a large DOM increases style-recalculation, layout and paint cost, hurting LCP and INP. Flatten deep nesting, paginate long lists/tables, and lazy-render off-screen elements.
- [https://www.e3dc.com/ready-for-future-e3-dc-praesentiert-neue-entwicklungen/](https://www.e3dc.com/ready-for-future-e3-dc-praesentiert-neue-entwicklungen/) — the page has 3992 DOM elements (recommended maximum is around 1500) — a large DOM increases style-recalculation, layout and paint cost, hurting LCP and INP. Flatten deep nesting, paginate long lists/tables, and lazy-render off-screen elements.
- [https://www.e3dc.com/sektorenkopplung-von-hauskraftwerk-und-waermepumpe/](https://www.e3dc.com/sektorenkopplung-von-hauskraftwerk-und-waermepumpe/) — the page has 3635 DOM elements (recommended maximum is around 1500) — a large DOM increases style-recalculation, layout and paint cost, hurting LCP and INP. Flatten deep nesting, paginate long lists/tables, and lazy-render off-screen elements.
- [https://www.e3dc.com/solarpaket-1-das-ist-jetzt-wichtig/](https://www.e3dc.com/solarpaket-1-das-ist-jetzt-wichtig/) — the page has 3652 DOM elements (recommended maximum is around 1500) — a large DOM increases style-recalculation, layout and paint cost, hurting LCP and INP. Flatten deep nesting, paginate long lists/tables, and lazy-render off-screen elements.
- [https://www.e3dc.com/systemtechnik/](https://www.e3dc.com/systemtechnik/) — the page has 4069 DOM elements (recommended maximum is around 1500) — a large DOM increases style-recalculation, layout and paint cost, hurting LCP and INP. Flatten deep nesting, paginate long lists/tables, and lazy-render off-screen elements.
- [https://www.e3dc.com/trilink-technologie-fuer-mehrfamilienhaeuser/](https://www.e3dc.com/trilink-technologie-fuer-mehrfamilienhaeuser/) — the page has 3623 DOM elements (recommended maximum is around 1500) — a large DOM increases style-recalculation, layout and paint cost, hurting LCP and INP. Flatten deep nesting, paginate long lists/tables, and lazy-render off-screen elements.
- [https://www.e3dc.com/waermepumpen-klimaanlagen-als-komplettloesung-fuer-winter-und-sommer/](https://www.e3dc.com/waermepumpen-klimaanlagen-als-komplettloesung-fuer-winter-und-sommer/) — the page has 3999 DOM elements (recommended maximum is around 1500) — a large DOM increases style-recalculation, layout and paint cost, hurting LCP and INP. Flatten deep nesting, paginate long lists/tables, and lazy-render off-screen elements.
- [https://www.e3dc.com/wie-hauskraftwerke-heute-und-morgen-360-autark-machen/](https://www.e3dc.com/wie-hauskraftwerke-heute-und-morgen-360-autark-machen/) — the page has 3626 DOM elements (recommended maximum is around 1500) — a large DOM increases style-recalculation, layout and paint cost, hurting LCP and INP. Flatten deep nesting, paginate long lists/tables, and lazy-render off-screen elements.

#### Legacy image format (jpg/png/gif) with no next-gen fallback

- Rule: `perf.images_legacy_format` · Category: Performance · Occurrences: 44

- [https://www.e3dc.com/](https://www.e3dc.com/) — 20 image(s) use a legacy format (jpg/png/gif) with no next-gen <picture> fallback. Serve WebP or AVIF (with a <picture> typed <source>) to cut image transfer weight and improve LCP.
- [https://www.e3dc.com/andreas-piepenbrink-die-photovoltaik-bietet-mehr/](https://www.e3dc.com/andreas-piepenbrink-die-photovoltaik-bietet-mehr/) — 1 image(s) use a legacy format (jpg/png/gif) with no next-gen <picture> fallback. Serve WebP or AVIF (with a <picture> typed <source>) to cut image transfer weight and improve LCP.
- [https://www.e3dc.com/ausgezeichnete-speichertechnologie-e3-dc-ist-best-of-german-industry/](https://www.e3dc.com/ausgezeichnete-speichertechnologie-e3-dc-ist-best-of-german-industry/) — 11 image(s) use a legacy format (jpg/png/gif) with no next-gen <picture> fallback. Serve WebP or AVIF (with a <picture> typed <source>) to cut image transfer weight and improve LCP.
- [https://www.e3dc.com/batteriespeicher-fuer-pv-anlage/](https://www.e3dc.com/batteriespeicher-fuer-pv-anlage/) — 7 image(s) use a legacy format (jpg/png/gif) with no next-gen <picture> fallback. Serve WebP or AVIF (with a <picture> typed <source>) to cut image transfer weight and improve LCP.
- [https://www.e3dc.com/batterietechnik-fuer-stromspeicher/](https://www.e3dc.com/batterietechnik-fuer-stromspeicher/) — 7 image(s) use a legacy format (jpg/png/gif) with no next-gen <picture> fallback. Serve WebP or AVIF (with a <picture> typed <source>) to cut image transfer weight and improve LCP.
- [https://www.e3dc.com/ch/trilink-technologie-fuer-mehrfamilienhaeuser/](https://www.e3dc.com/ch/trilink-technologie-fuer-mehrfamilienhaeuser/) — 2 image(s) use a legacy format (jpg/png/gif) with no next-gen <picture> fallback. Serve WebP or AVIF (with a <picture> typed <source>) to cut image transfer weight and improve LCP.
- [https://www.e3dc.com/co2-freies-heizen-e3-dc-macht-sg-ready-zum-standard/](https://www.e3dc.com/co2-freies-heizen-e3-dc-macht-sg-ready-zum-standard/) — 13 image(s) use a legacy format (jpg/png/gif) with no next-gen <picture> fallback. Serve WebP or AVIF (with a <picture> typed <source>) to cut image transfer weight and improve LCP.
- [https://www.e3dc.com/den-standard-fuer-klimaneutrale-gebaeude-gesetzt/](https://www.e3dc.com/den-standard-fuer-klimaneutrale-gebaeude-gesetzt/) — 2 image(s) use a legacy format (jpg/png/gif) with no next-gen <picture> fallback. Serve WebP or AVIF (with a <picture> typed <source>) to cut image transfer weight and improve LCP.
- [https://www.e3dc.com/der-neue-quattroporte-von-e3-dc/](https://www.e3dc.com/der-neue-quattroporte-von-e3-dc/) — 1 image(s) use a legacy format (jpg/png/gif) with no next-gen <picture> fallback. Serve WebP or AVIF (with a <picture> typed <source>) to cut image transfer weight and improve LCP.
- [https://www.e3dc.com/deutschland-kfw-442/](https://www.e3dc.com/deutschland-kfw-442/) — 7 image(s) use a legacy format (jpg/png/gif) with no next-gen <picture> fallback. Serve WebP or AVIF (with a <picture> typed <source>) to cut image transfer weight and improve LCP.
- [https://www.e3dc.com/dynamische-strompreise-mit-e3-dc-maximal-autark-und-transparent/](https://www.e3dc.com/dynamische-strompreise-mit-e3-dc-maximal-autark-und-transparent/) — 1 image(s) use a legacy format (jpg/png/gif) with no next-gen <picture> fallback. Serve WebP or AVIF (with a <picture> typed <source>) to cut image transfer weight and improve LCP.
- [https://www.e3dc.com/e3-dc-integriert-ostroms-dynamischen-stromtarif/](https://www.e3dc.com/e3-dc-integriert-ostroms-dynamischen-stromtarif/) — 2 image(s) use a legacy format (jpg/png/gif) with no next-gen <picture> fallback. Serve WebP or AVIF (with a <picture> typed <source>) to cut image transfer weight and improve LCP.
- [https://www.e3dc.com/e3-dc-ist-offizieller-teampartner-der-deutschen-ski-nationalmannschaft-alpin/](https://www.e3dc.com/e3-dc-ist-offizieller-teampartner-der-deutschen-ski-nationalmannschaft-alpin/) — 2 image(s) use a legacy format (jpg/png/gif) with no next-gen <picture> fallback. Serve WebP or AVIF (with a <picture> typed <source>) to cut image transfer weight and improve LCP.
- [https://www.e3dc.com/e3-dc-nutzt-intelligente-messsysteme-von-spot-my-energy-fuer-das-smart-metering/](https://www.e3dc.com/e3-dc-nutzt-intelligente-messsysteme-von-spot-my-energy-fuer-das-smart-metering/) — 2 image(s) use a legacy format (jpg/png/gif) with no next-gen <picture> fallback. Serve WebP or AVIF (with a <picture> typed <source>) to cut image transfer weight and improve LCP.
- [https://www.e3dc.com/e3-dc-standpunkte-zu-aktuellen-energiepolitischen-fragen/](https://www.e3dc.com/e3-dc-standpunkte-zu-aktuellen-energiepolitischen-fragen/) — 1 image(s) use a legacy format (jpg/png/gif) with no next-gen <picture> fallback. Serve WebP or AVIF (with a <picture> typed <source>) to cut image transfer weight and improve LCP.
- [https://www.e3dc.com/e3-dc-und-lumenaza-bringen-prosumer-an-den-markt/](https://www.e3dc.com/e3-dc-und-lumenaza-bringen-prosumer-an-den-markt/) — 1 image(s) use a legacy format (jpg/png/gif) with no next-gen <picture> fallback. Serve WebP or AVIF (with a <picture> typed <source>) to cut image transfer weight and improve LCP.
- [https://www.e3dc.com/e3-dc-wird-mit-dem-top-brand-pv-siegel-fuer-deutschland-oesterreich-und-die-schweiz-ausgezeichnet/](https://www.e3dc.com/e3-dc-wird-mit-dem-top-brand-pv-siegel-fuer-deutschland-oesterreich-und-die-schweiz-ausgezeichnet/) — 2 image(s) use a legacy format (jpg/png/gif) with no next-gen <picture> fallback. Serve WebP or AVIF (with a <picture> typed <source>) to cut image transfer weight and improve LCP.
- [https://www.e3dc.com/eeg-novelle-2021-was-aendert-sich-fuer-den-eigenverbrauch/](https://www.e3dc.com/eeg-novelle-2021-was-aendert-sich-fuer-den-eigenverbrauch/) — 2 image(s) use a legacy format (jpg/png/gif) with no next-gen <picture> fallback. Serve WebP or AVIF (with a <picture> typed <source>) to cut image transfer weight and improve LCP.
- [https://www.e3dc.com/eigene-energie-ist-die-basis-fuer-den-erfolg/](https://www.e3dc.com/eigene-energie-ist-die-basis-fuer-den-erfolg/) — 7 image(s) use a legacy format (jpg/png/gif) with no next-gen <picture> fallback. Serve WebP or AVIF (with a <picture> typed <source>) to cut image transfer weight and improve LCP.
- [https://www.e3dc.com/eigenstrom-fuer-den-firmenwagen/](https://www.e3dc.com/eigenstrom-fuer-den-firmenwagen/) — 2 image(s) use a legacy format (jpg/png/gif) with no next-gen <picture> fallback. Serve WebP or AVIF (with a <picture> typed <source>) to cut image transfer weight and improve LCP.
- [https://www.e3dc.com/elektroautos-werden-stromspeicher-fuer-gebaeude/](https://www.e3dc.com/elektroautos-werden-stromspeicher-fuer-gebaeude/) — 3 image(s) use a legacy format (jpg/png/gif) with no next-gen <picture> fallback. Serve WebP or AVIF (with a <picture> typed <source>) to cut image transfer weight and improve LCP.
- [https://www.e3dc.com/erneute-auszeichnung-mit-solarprosumeraward-2023-24-in-4-kategorien/](https://www.e3dc.com/erneute-auszeichnung-mit-solarprosumeraward-2023-24-in-4-kategorien/) — 1 image(s) use a legacy format (jpg/png/gif) with no next-gen <picture> fallback. Serve WebP or AVIF (with a <picture> typed <source>) to cut image transfer weight and improve LCP.
- [https://www.e3dc.com/ertrag-einer-pv-anlage/](https://www.e3dc.com/ertrag-einer-pv-anlage/) — 7 image(s) use a legacy format (jpg/png/gif) with no next-gen <picture> fallback. Serve WebP or AVIF (with a <picture> typed <source>) to cut image transfer weight and improve LCP.
- [https://www.e3dc.com/fakten-zur-photovoltaikanlage/](https://www.e3dc.com/fakten-zur-photovoltaikanlage/) — 7 image(s) use a legacy format (jpg/png/gif) with no next-gen <picture> fallback. Serve WebP or AVIF (with a <picture> typed <source>) to cut image transfer weight and improve LCP.
- [https://www.e3dc.com/hager-group-startet-neue-business-unit-hagerenergy/](https://www.e3dc.com/hager-group-startet-neue-business-unit-hagerenergy/) — 7 image(s) use a legacy format (jpg/png/gif) with no next-gen <picture> fallback. Serve WebP or AVIF (with a <picture> typed <source>) to cut image transfer weight and improve LCP.
- [https://www.e3dc.com/hager-group-uebernimmt-energiespeicherspezialist-e3-dc/](https://www.e3dc.com/hager-group-uebernimmt-energiespeicherspezialist-e3-dc/) — 2 image(s) use a legacy format (jpg/png/gif) with no next-gen <picture> fallback. Serve WebP or AVIF (with a <picture> typed <source>) to cut image transfer weight and improve LCP.
- [https://www.e3dc.com/hochleistungs-doppelstrings-bis-2-x-27a-im-hauskraftwerk/](https://www.e3dc.com/hochleistungs-doppelstrings-bis-2-x-27a-im-hauskraftwerk/) — 2 image(s) use a legacy format (jpg/png/gif) with no next-gen <picture> fallback. Serve WebP or AVIF (with a <picture> typed <source>) to cut image transfer weight and improve LCP.
- [https://www.e3dc.com/kostenloses-update-fuer-e3-dc-stromspeicher/](https://www.e3dc.com/kostenloses-update-fuer-e3-dc-stromspeicher/) — 2 image(s) use a legacy format (jpg/png/gif) with no next-gen <picture> fallback. Serve WebP or AVIF (with a <picture> typed <source>) to cut image transfer weight and improve LCP.
- [https://www.e3dc.com/kundenzufriedenheit-bei-e3-dc-ist-erneut-sehr-gut/](https://www.e3dc.com/kundenzufriedenheit-bei-e3-dc-ist-erneut-sehr-gut/) — 7 image(s) use a legacy format (jpg/png/gif) with no next-gen <picture> fallback. Serve WebP or AVIF (with a <picture> typed <source>) to cut image transfer weight and improve LCP.
- [https://www.e3dc.com/nulleinspeisung-ist-top-business-model-2020/](https://www.e3dc.com/nulleinspeisung-ist-top-business-model-2020/) — 2 image(s) use a legacy format (jpg/png/gif) with no next-gen <picture> fallback. Serve WebP or AVIF (with a <picture> typed <source>) to cut image transfer weight and improve LCP.
- [https://www.e3dc.com/photovoltaik-fuer-den-eigenverbrauch/](https://www.e3dc.com/photovoltaik-fuer-den-eigenverbrauch/) — 7 image(s) use a legacy format (jpg/png/gif) with no next-gen <picture> fallback. Serve WebP or AVIF (with a <picture> typed <source>) to cut image transfer weight and improve LCP.
- [https://www.e3dc.com/photovoltaik-leistung/](https://www.e3dc.com/photovoltaik-leistung/) — 7 image(s) use a legacy format (jpg/png/gif) with no next-gen <picture> fallback. Serve WebP or AVIF (with a <picture> typed <source>) to cut image transfer weight and improve LCP.
- [https://www.e3dc.com/photovoltaik-und-waermepumpe/](https://www.e3dc.com/photovoltaik-und-waermepumpe/) — 7 image(s) use a legacy format (jpg/png/gif) with no next-gen <picture> fallback. Serve WebP or AVIF (with a <picture> typed <source>) to cut image transfer weight and improve LCP.
- [https://www.e3dc.com/pv-module/](https://www.e3dc.com/pv-module/) — 7 image(s) use a legacy format (jpg/png/gif) with no next-gen <picture> fallback. Serve WebP or AVIF (with a <picture> typed <source>) to cut image transfer weight and improve LCP.
- [https://www.e3dc.com/pv-speicher-als-smarthome-zentrale/](https://www.e3dc.com/pv-speicher-als-smarthome-zentrale/) — 1 image(s) use a legacy format (jpg/png/gif) with no next-gen <picture> fallback. Serve WebP or AVIF (with a <picture> typed <source>) to cut image transfer weight and improve LCP.
- [https://www.e3dc.com/pv-speicher-nachruesten/](https://www.e3dc.com/pv-speicher-nachruesten/) — 7 image(s) use a legacy format (jpg/png/gif) with no next-gen <picture> fallback. Serve WebP or AVIF (with a <picture> typed <source>) to cut image transfer weight and improve LCP.
- [https://www.e3dc.com/ratgeber-stromspeicher/](https://www.e3dc.com/ratgeber-stromspeicher/) — 7 image(s) use a legacy format (jpg/png/gif) with no next-gen <picture> fallback. Serve WebP or AVIF (with a <picture> typed <source>) to cut image transfer weight and improve LCP.
- [https://www.e3dc.com/ready-for-future-e3-dc-praesentiert-neue-entwicklungen/](https://www.e3dc.com/ready-for-future-e3-dc-praesentiert-neue-entwicklungen/) — 3 image(s) use a legacy format (jpg/png/gif) with no next-gen <picture> fallback. Serve WebP or AVIF (with a <picture> typed <source>) to cut image transfer weight and improve LCP.
- [https://www.e3dc.com/sektorenkopplung-von-hauskraftwerk-und-waermepumpe/](https://www.e3dc.com/sektorenkopplung-von-hauskraftwerk-und-waermepumpe/) — 4 image(s) use a legacy format (jpg/png/gif) with no next-gen <picture> fallback. Serve WebP or AVIF (with a <picture> typed <source>) to cut image transfer weight and improve LCP.
- [https://www.e3dc.com/solar-wechselrichter/](https://www.e3dc.com/solar-wechselrichter/) — 9 image(s) use a legacy format (jpg/png/gif) with no next-gen <picture> fallback. Serve WebP or AVIF (with a <picture> typed <source>) to cut image transfer weight and improve LCP.
- [https://www.e3dc.com/solarpaket-1-das-ist-jetzt-wichtig/](https://www.e3dc.com/solarpaket-1-das-ist-jetzt-wichtig/) — 1 image(s) use a legacy format (jpg/png/gif) with no next-gen <picture> fallback. Serve WebP or AVIF (with a <picture> typed <source>) to cut image transfer weight and improve LCP.
- [https://www.e3dc.com/trilink-technologie-fuer-mehrfamilienhaeuser/](https://www.e3dc.com/trilink-technologie-fuer-mehrfamilienhaeuser/) — 2 image(s) use a legacy format (jpg/png/gif) with no next-gen <picture> fallback. Serve WebP or AVIF (with a <picture> typed <source>) to cut image transfer weight and improve LCP.
- [https://www.e3dc.com/waermepumpen-klimaanlagen-als-komplettloesung-fuer-winter-und-sommer/](https://www.e3dc.com/waermepumpen-klimaanlagen-als-komplettloesung-fuer-winter-und-sommer/) — 2 image(s) use a legacy format (jpg/png/gif) with no next-gen <picture> fallback. Serve WebP or AVIF (with a <picture> typed <source>) to cut image transfer weight and improve LCP.
- [https://www.e3dc.com/wie-hauskraftwerke-heute-und-morgen-360-autark-machen/](https://www.e3dc.com/wie-hauskraftwerke-heute-und-morgen-360-autark-machen/) — 2 image(s) use a legacy format (jpg/png/gif) with no next-gen <picture> fallback. Serve WebP or AVIF (with a <picture> typed <source>) to cut image transfer weight and improve LCP.

#### No ETag header (no conditional GET for unchanged pages)

- Rule: `perf.no_etag` · Category: Performance · Occurrences: 49

- [https://www.e3dc.com/](https://www.e3dc.com/) — the response carries no ETag header — without an ETag (or Last-Modified) there is no cache-revalidation mechanism, so crawlers re-download the full body every visit. Emit an ETag (a content hash) to enable conditional If-None-Match requests.
- [https://www.e3dc.com/andreas-piepenbrink-die-photovoltaik-bietet-mehr/](https://www.e3dc.com/andreas-piepenbrink-die-photovoltaik-bietet-mehr/) — the response carries no ETag header — without an ETag (or Last-Modified) there is no cache-revalidation mechanism, so crawlers re-download the full body every visit. Emit an ETag (a content hash) to enable conditional If-None-Match requests.
- [https://www.e3dc.com/ausgezeichnete-speichertechnologie-e3-dc-ist-best-of-german-industry/](https://www.e3dc.com/ausgezeichnete-speichertechnologie-e3-dc-ist-best-of-german-industry/) — the response carries no ETag header — without an ETag (or Last-Modified) there is no cache-revalidation mechanism, so crawlers re-download the full body every visit. Emit an ETag (a content hash) to enable conditional If-None-Match requests.
- [https://www.e3dc.com/batteriespeicher-fuer-pv-anlage/](https://www.e3dc.com/batteriespeicher-fuer-pv-anlage/) — the response carries no ETag header — without an ETag (or Last-Modified) there is no cache-revalidation mechanism, so crawlers re-download the full body every visit. Emit an ETag (a content hash) to enable conditional If-None-Match requests.
- [https://www.e3dc.com/batterietechnik-fuer-stromspeicher/](https://www.e3dc.com/batterietechnik-fuer-stromspeicher/) — the response carries no ETag header — without an ETag (or Last-Modified) there is no cache-revalidation mechanism, so crawlers re-download the full body every visit. Emit an ETag (a content hash) to enable conditional If-None-Match requests.
- [https://www.e3dc.com/ch/trilink-technologie-fuer-mehrfamilienhaeuser/](https://www.e3dc.com/ch/trilink-technologie-fuer-mehrfamilienhaeuser/) — the response carries no ETag header — without an ETag (or Last-Modified) there is no cache-revalidation mechanism, so crawlers re-download the full body every visit. Emit an ETag (a content hash) to enable conditional If-None-Match requests.
- [https://www.e3dc.com/co2-freies-heizen-e3-dc-macht-sg-ready-zum-standard/](https://www.e3dc.com/co2-freies-heizen-e3-dc-macht-sg-ready-zum-standard/) — the response carries no ETag header — without an ETag (or Last-Modified) there is no cache-revalidation mechanism, so crawlers re-download the full body every visit. Emit an ETag (a content hash) to enable conditional If-None-Match requests.
- [https://www.e3dc.com/den-standard-fuer-klimaneutrale-gebaeude-gesetzt/](https://www.e3dc.com/den-standard-fuer-klimaneutrale-gebaeude-gesetzt/) — the response carries no ETag header — without an ETag (or Last-Modified) there is no cache-revalidation mechanism, so crawlers re-download the full body every visit. Emit an ETag (a content hash) to enable conditional If-None-Match requests.
- [https://www.e3dc.com/der-neue-quattroporte-von-e3-dc/](https://www.e3dc.com/der-neue-quattroporte-von-e3-dc/) — the response carries no ETag header — without an ETag (or Last-Modified) there is no cache-revalidation mechanism, so crawlers re-download the full body every visit. Emit an ETag (a content hash) to enable conditional If-None-Match requests.
- [https://www.e3dc.com/deutschland-kfw-442/](https://www.e3dc.com/deutschland-kfw-442/) — the response carries no ETag header — without an ETag (or Last-Modified) there is no cache-revalidation mechanism, so crawlers re-download the full body every visit. Emit an ETag (a content hash) to enable conditional If-None-Match requests.
- [https://www.e3dc.com/dynamische-strompreise-mit-e3-dc-maximal-autark-und-transparent/](https://www.e3dc.com/dynamische-strompreise-mit-e3-dc-maximal-autark-und-transparent/) — the response carries no ETag header — without an ETag (or Last-Modified) there is no cache-revalidation mechanism, so crawlers re-download the full body every visit. Emit an ETag (a content hash) to enable conditional If-None-Match requests.
- [https://www.e3dc.com/e3-dc-integriert-ostroms-dynamischen-stromtarif/](https://www.e3dc.com/e3-dc-integriert-ostroms-dynamischen-stromtarif/) — the response carries no ETag header — without an ETag (or Last-Modified) there is no cache-revalidation mechanism, so crawlers re-download the full body every visit. Emit an ETag (a content hash) to enable conditional If-None-Match requests.
- [https://www.e3dc.com/e3-dc-ist-offizieller-teampartner-der-deutschen-ski-nationalmannschaft-alpin/](https://www.e3dc.com/e3-dc-ist-offizieller-teampartner-der-deutschen-ski-nationalmannschaft-alpin/) — the response carries no ETag header — without an ETag (or Last-Modified) there is no cache-revalidation mechanism, so crawlers re-download the full body every visit. Emit an ETag (a content hash) to enable conditional If-None-Match requests.
- [https://www.e3dc.com/e3-dc-nutzt-intelligente-messsysteme-von-spot-my-energy-fuer-das-smart-metering/](https://www.e3dc.com/e3-dc-nutzt-intelligente-messsysteme-von-spot-my-energy-fuer-das-smart-metering/) — the response carries no ETag header — without an ETag (or Last-Modified) there is no cache-revalidation mechanism, so crawlers re-download the full body every visit. Emit an ETag (a content hash) to enable conditional If-None-Match requests.
- [https://www.e3dc.com/e3-dc-standpunkte-zu-aktuellen-energiepolitischen-fragen/](https://www.e3dc.com/e3-dc-standpunkte-zu-aktuellen-energiepolitischen-fragen/) — the response carries no ETag header — without an ETag (or Last-Modified) there is no cache-revalidation mechanism, so crawlers re-download the full body every visit. Emit an ETag (a content hash) to enable conditional If-None-Match requests.
- [https://www.e3dc.com/e3-dc-und-lumenaza-bringen-prosumer-an-den-markt/](https://www.e3dc.com/e3-dc-und-lumenaza-bringen-prosumer-an-den-markt/) — the response carries no ETag header — without an ETag (or Last-Modified) there is no cache-revalidation mechanism, so crawlers re-download the full body every visit. Emit an ETag (a content hash) to enable conditional If-None-Match requests.
- [https://www.e3dc.com/e3-dc-wird-mit-dem-top-brand-pv-siegel-fuer-deutschland-oesterreich-und-die-schweiz-ausgezeichnet/](https://www.e3dc.com/e3-dc-wird-mit-dem-top-brand-pv-siegel-fuer-deutschland-oesterreich-und-die-schweiz-ausgezeichnet/) — the response carries no ETag header — without an ETag (or Last-Modified) there is no cache-revalidation mechanism, so crawlers re-download the full body every visit. Emit an ETag (a content hash) to enable conditional If-None-Match requests.
- [https://www.e3dc.com/eeg-novelle-2021-was-aendert-sich-fuer-den-eigenverbrauch/](https://www.e3dc.com/eeg-novelle-2021-was-aendert-sich-fuer-den-eigenverbrauch/) — the response carries no ETag header — without an ETag (or Last-Modified) there is no cache-revalidation mechanism, so crawlers re-download the full body every visit. Emit an ETag (a content hash) to enable conditional If-None-Match requests.
- [https://www.e3dc.com/eigene-energie-ist-die-basis-fuer-den-erfolg/](https://www.e3dc.com/eigene-energie-ist-die-basis-fuer-den-erfolg/) — the response carries no ETag header — without an ETag (or Last-Modified) there is no cache-revalidation mechanism, so crawlers re-download the full body every visit. Emit an ETag (a content hash) to enable conditional If-None-Match requests.
- [https://www.e3dc.com/eigenstrom-fuer-den-firmenwagen/](https://www.e3dc.com/eigenstrom-fuer-den-firmenwagen/) — the response carries no ETag header — without an ETag (or Last-Modified) there is no cache-revalidation mechanism, so crawlers re-download the full body every visit. Emit an ETag (a content hash) to enable conditional If-None-Match requests.
- [https://www.e3dc.com/elektroautos-werden-stromspeicher-fuer-gebaeude/](https://www.e3dc.com/elektroautos-werden-stromspeicher-fuer-gebaeude/) — the response carries no ETag header — without an ETag (or Last-Modified) there is no cache-revalidation mechanism, so crawlers re-download the full body every visit. Emit an ETag (a content hash) to enable conditional If-None-Match requests.
- [https://www.e3dc.com/energiemanagement/](https://www.e3dc.com/energiemanagement/) — the response carries no ETag header — without an ETag (or Last-Modified) there is no cache-revalidation mechanism, so crawlers re-download the full body every visit. Emit an ETag (a content hash) to enable conditional If-None-Match requests.
- [https://www.e3dc.com/energieportal/](https://www.e3dc.com/energieportal/) — the response carries no ETag header — without an ETag (or Last-Modified) there is no cache-revalidation mechanism, so crawlers re-download the full body every visit. Emit an ETag (a content hash) to enable conditional If-None-Match requests.
- [https://www.e3dc.com/erneute-auszeichnung-mit-solarprosumeraward-2023-24-in-4-kategorien/](https://www.e3dc.com/erneute-auszeichnung-mit-solarprosumeraward-2023-24-in-4-kategorien/) — the response carries no ETag header — without an ETag (or Last-Modified) there is no cache-revalidation mechanism, so crawlers re-download the full body every visit. Emit an ETag (a content hash) to enable conditional If-None-Match requests.
- [https://www.e3dc.com/ertrag-einer-pv-anlage/](https://www.e3dc.com/ertrag-einer-pv-anlage/) — the response carries no ETag header — without an ETag (or Last-Modified) there is no cache-revalidation mechanism, so crawlers re-download the full body every visit. Emit an ETag (a content hash) to enable conditional If-None-Match requests.
- [https://www.e3dc.com/fakten-zur-photovoltaikanlage/](https://www.e3dc.com/fakten-zur-photovoltaikanlage/) — the response carries no ETag header — without an ETag (or Last-Modified) there is no cache-revalidation mechanism, so crawlers re-download the full body every visit. Emit an ETag (a content hash) to enable conditional If-None-Match requests.
- [https://www.e3dc.com/hager-group-startet-neue-business-unit-hagerenergy/](https://www.e3dc.com/hager-group-startet-neue-business-unit-hagerenergy/) — the response carries no ETag header — without an ETag (or Last-Modified) there is no cache-revalidation mechanism, so crawlers re-download the full body every visit. Emit an ETag (a content hash) to enable conditional If-None-Match requests.
- [https://www.e3dc.com/hager-group-uebernimmt-energiespeicherspezialist-e3-dc/](https://www.e3dc.com/hager-group-uebernimmt-energiespeicherspezialist-e3-dc/) — the response carries no ETag header — without an ETag (or Last-Modified) there is no cache-revalidation mechanism, so crawlers re-download the full body every visit. Emit an ETag (a content hash) to enable conditional If-None-Match requests.
- [https://www.e3dc.com/hausautomation/](https://www.e3dc.com/hausautomation/) — the response carries no ETag header — without an ETag (or Last-Modified) there is no cache-revalidation mechanism, so crawlers re-download the full body every visit. Emit an ETag (a content hash) to enable conditional If-None-Match requests.
- [https://www.e3dc.com/hochleistungs-doppelstrings-bis-2-x-27a-im-hauskraftwerk/](https://www.e3dc.com/hochleistungs-doppelstrings-bis-2-x-27a-im-hauskraftwerk/) — the response carries no ETag header — without an ETag (or Last-Modified) there is no cache-revalidation mechanism, so crawlers re-download the full body every visit. Emit an ETag (a content hash) to enable conditional If-None-Match requests.
- [https://www.e3dc.com/kostenloses-update-fuer-e3-dc-stromspeicher/](https://www.e3dc.com/kostenloses-update-fuer-e3-dc-stromspeicher/) — the response carries no ETag header — without an ETag (or Last-Modified) there is no cache-revalidation mechanism, so crawlers re-download the full body every visit. Emit an ETag (a content hash) to enable conditional If-None-Match requests.
- [https://www.e3dc.com/kundenzufriedenheit-bei-e3-dc-ist-erneut-sehr-gut/](https://www.e3dc.com/kundenzufriedenheit-bei-e3-dc-ist-erneut-sehr-gut/) — the response carries no ETag header — without an ETag (or Last-Modified) there is no cache-revalidation mechanism, so crawlers re-download the full body every visit. Emit an ETag (a content hash) to enable conditional If-None-Match requests.
- [https://www.e3dc.com/notstromfunktion/](https://www.e3dc.com/notstromfunktion/) — the response carries no ETag header — without an ETag (or Last-Modified) there is no cache-revalidation mechanism, so crawlers re-download the full body every visit. Emit an ETag (a content hash) to enable conditional If-None-Match requests.
- [https://www.e3dc.com/nulleinspeisung-ist-top-business-model-2020/](https://www.e3dc.com/nulleinspeisung-ist-top-business-model-2020/) — the response carries no ETag header — without an ETag (or Last-Modified) there is no cache-revalidation mechanism, so crawlers re-download the full body every visit. Emit an ETag (a content hash) to enable conditional If-None-Match requests.
- [https://www.e3dc.com/photovoltaik-fuer-den-eigenverbrauch/](https://www.e3dc.com/photovoltaik-fuer-den-eigenverbrauch/) — the response carries no ETag header — without an ETag (or Last-Modified) there is no cache-revalidation mechanism, so crawlers re-download the full body every visit. Emit an ETag (a content hash) to enable conditional If-None-Match requests.
- [https://www.e3dc.com/photovoltaik-leistung/](https://www.e3dc.com/photovoltaik-leistung/) — the response carries no ETag header — without an ETag (or Last-Modified) there is no cache-revalidation mechanism, so crawlers re-download the full body every visit. Emit an ETag (a content hash) to enable conditional If-None-Match requests.
- [https://www.e3dc.com/photovoltaik-und-waermepumpe/](https://www.e3dc.com/photovoltaik-und-waermepumpe/) — the response carries no ETag header — without an ETag (or Last-Modified) there is no cache-revalidation mechanism, so crawlers re-download the full body every visit. Emit an ETag (a content hash) to enable conditional If-None-Match requests.
- [https://www.e3dc.com/pv-module/](https://www.e3dc.com/pv-module/) — the response carries no ETag header — without an ETag (or Last-Modified) there is no cache-revalidation mechanism, so crawlers re-download the full body every visit. Emit an ETag (a content hash) to enable conditional If-None-Match requests.
- [https://www.e3dc.com/pv-speicher-als-smarthome-zentrale/](https://www.e3dc.com/pv-speicher-als-smarthome-zentrale/) — the response carries no ETag header — without an ETag (or Last-Modified) there is no cache-revalidation mechanism, so crawlers re-download the full body every visit. Emit an ETag (a content hash) to enable conditional If-None-Match requests.
- [https://www.e3dc.com/pv-speicher-nachruesten/](https://www.e3dc.com/pv-speicher-nachruesten/) — the response carries no ETag header — without an ETag (or Last-Modified) there is no cache-revalidation mechanism, so crawlers re-download the full body every visit. Emit an ETag (a content hash) to enable conditional If-None-Match requests.
- [https://www.e3dc.com/ratgeber-stromspeicher/](https://www.e3dc.com/ratgeber-stromspeicher/) — the response carries no ETag header — without an ETag (or Last-Modified) there is no cache-revalidation mechanism, so crawlers re-download the full body every visit. Emit an ETag (a content hash) to enable conditional If-None-Match requests.
- [https://www.e3dc.com/ready-for-future-e3-dc-praesentiert-neue-entwicklungen/](https://www.e3dc.com/ready-for-future-e3-dc-praesentiert-neue-entwicklungen/) — the response carries no ETag header — without an ETag (or Last-Modified) there is no cache-revalidation mechanism, so crawlers re-download the full body every visit. Emit an ETag (a content hash) to enable conditional If-None-Match requests.
- [https://www.e3dc.com/sektorenkopplung-von-hauskraftwerk-und-waermepumpe/](https://www.e3dc.com/sektorenkopplung-von-hauskraftwerk-und-waermepumpe/) — the response carries no ETag header — without an ETag (or Last-Modified) there is no cache-revalidation mechanism, so crawlers re-download the full body every visit. Emit an ETag (a content hash) to enable conditional If-None-Match requests.
- [https://www.e3dc.com/solar-wechselrichter/](https://www.e3dc.com/solar-wechselrichter/) — the response carries no ETag header — without an ETag (or Last-Modified) there is no cache-revalidation mechanism, so crawlers re-download the full body every visit. Emit an ETag (a content hash) to enable conditional If-None-Match requests.
- [https://www.e3dc.com/solarpaket-1-das-ist-jetzt-wichtig/](https://www.e3dc.com/solarpaket-1-das-ist-jetzt-wichtig/) — the response carries no ETag header — without an ETag (or Last-Modified) there is no cache-revalidation mechanism, so crawlers re-download the full body every visit. Emit an ETag (a content hash) to enable conditional If-None-Match requests.
- [https://www.e3dc.com/systemtechnik/](https://www.e3dc.com/systemtechnik/) — the response carries no ETag header — without an ETag (or Last-Modified) there is no cache-revalidation mechanism, so crawlers re-download the full body every visit. Emit an ETag (a content hash) to enable conditional If-None-Match requests.
- [https://www.e3dc.com/trilink-technologie-fuer-mehrfamilienhaeuser/](https://www.e3dc.com/trilink-technologie-fuer-mehrfamilienhaeuser/) — the response carries no ETag header — without an ETag (or Last-Modified) there is no cache-revalidation mechanism, so crawlers re-download the full body every visit. Emit an ETag (a content hash) to enable conditional If-None-Match requests.
- [https://www.e3dc.com/waermepumpen-klimaanlagen-als-komplettloesung-fuer-winter-und-sommer/](https://www.e3dc.com/waermepumpen-klimaanlagen-als-komplettloesung-fuer-winter-und-sommer/) — the response carries no ETag header — without an ETag (or Last-Modified) there is no cache-revalidation mechanism, so crawlers re-download the full body every visit. Emit an ETag (a content hash) to enable conditional If-None-Match requests.
- [https://www.e3dc.com/wie-hauskraftwerke-heute-und-morgen-360-autark-machen/](https://www.e3dc.com/wie-hauskraftwerke-heute-und-morgen-360-autark-machen/) — the response carries no ETag header — without an ETag (or Last-Modified) there is no cache-revalidation mechanism, so crawlers re-download the full body every visit. Emit an ETag (a content hash) to enable conditional If-None-Match requests.

#### No Last-Modified header (no conditional GET for unchanged pages)

- Rule: `perf.no_last_modified` · Category: Performance · Occurrences: 49

- [https://www.e3dc.com/](https://www.e3dc.com/) — the response carries no Last-Modified header — Googlebot can't send an If-Modified-Since request, so it re-downloads the full page body on every crawl even when nothing changed. Emit Last-Modified (or an ETag) on stable pages to enable 304 Not Modified responses.
- [https://www.e3dc.com/andreas-piepenbrink-die-photovoltaik-bietet-mehr/](https://www.e3dc.com/andreas-piepenbrink-die-photovoltaik-bietet-mehr/) — the response carries no Last-Modified header — Googlebot can't send an If-Modified-Since request, so it re-downloads the full page body on every crawl even when nothing changed. Emit Last-Modified (or an ETag) on stable pages to enable 304 Not Modified responses.
- [https://www.e3dc.com/ausgezeichnete-speichertechnologie-e3-dc-ist-best-of-german-industry/](https://www.e3dc.com/ausgezeichnete-speichertechnologie-e3-dc-ist-best-of-german-industry/) — the response carries no Last-Modified header — Googlebot can't send an If-Modified-Since request, so it re-downloads the full page body on every crawl even when nothing changed. Emit Last-Modified (or an ETag) on stable pages to enable 304 Not Modified responses.
- [https://www.e3dc.com/batteriespeicher-fuer-pv-anlage/](https://www.e3dc.com/batteriespeicher-fuer-pv-anlage/) — the response carries no Last-Modified header — Googlebot can't send an If-Modified-Since request, so it re-downloads the full page body on every crawl even when nothing changed. Emit Last-Modified (or an ETag) on stable pages to enable 304 Not Modified responses.
- [https://www.e3dc.com/batterietechnik-fuer-stromspeicher/](https://www.e3dc.com/batterietechnik-fuer-stromspeicher/) — the response carries no Last-Modified header — Googlebot can't send an If-Modified-Since request, so it re-downloads the full page body on every crawl even when nothing changed. Emit Last-Modified (or an ETag) on stable pages to enable 304 Not Modified responses.
- [https://www.e3dc.com/ch/trilink-technologie-fuer-mehrfamilienhaeuser/](https://www.e3dc.com/ch/trilink-technologie-fuer-mehrfamilienhaeuser/) — the response carries no Last-Modified header — Googlebot can't send an If-Modified-Since request, so it re-downloads the full page body on every crawl even when nothing changed. Emit Last-Modified (or an ETag) on stable pages to enable 304 Not Modified responses.
- [https://www.e3dc.com/co2-freies-heizen-e3-dc-macht-sg-ready-zum-standard/](https://www.e3dc.com/co2-freies-heizen-e3-dc-macht-sg-ready-zum-standard/) — the response carries no Last-Modified header — Googlebot can't send an If-Modified-Since request, so it re-downloads the full page body on every crawl even when nothing changed. Emit Last-Modified (or an ETag) on stable pages to enable 304 Not Modified responses.
- [https://www.e3dc.com/den-standard-fuer-klimaneutrale-gebaeude-gesetzt/](https://www.e3dc.com/den-standard-fuer-klimaneutrale-gebaeude-gesetzt/) — the response carries no Last-Modified header — Googlebot can't send an If-Modified-Since request, so it re-downloads the full page body on every crawl even when nothing changed. Emit Last-Modified (or an ETag) on stable pages to enable 304 Not Modified responses.
- [https://www.e3dc.com/der-neue-quattroporte-von-e3-dc/](https://www.e3dc.com/der-neue-quattroporte-von-e3-dc/) — the response carries no Last-Modified header — Googlebot can't send an If-Modified-Since request, so it re-downloads the full page body on every crawl even when nothing changed. Emit Last-Modified (or an ETag) on stable pages to enable 304 Not Modified responses.
- [https://www.e3dc.com/deutschland-kfw-442/](https://www.e3dc.com/deutschland-kfw-442/) — the response carries no Last-Modified header — Googlebot can't send an If-Modified-Since request, so it re-downloads the full page body on every crawl even when nothing changed. Emit Last-Modified (or an ETag) on stable pages to enable 304 Not Modified responses.
- [https://www.e3dc.com/dynamische-strompreise-mit-e3-dc-maximal-autark-und-transparent/](https://www.e3dc.com/dynamische-strompreise-mit-e3-dc-maximal-autark-und-transparent/) — the response carries no Last-Modified header — Googlebot can't send an If-Modified-Since request, so it re-downloads the full page body on every crawl even when nothing changed. Emit Last-Modified (or an ETag) on stable pages to enable 304 Not Modified responses.
- [https://www.e3dc.com/e3-dc-integriert-ostroms-dynamischen-stromtarif/](https://www.e3dc.com/e3-dc-integriert-ostroms-dynamischen-stromtarif/) — the response carries no Last-Modified header — Googlebot can't send an If-Modified-Since request, so it re-downloads the full page body on every crawl even when nothing changed. Emit Last-Modified (or an ETag) on stable pages to enable 304 Not Modified responses.
- [https://www.e3dc.com/e3-dc-ist-offizieller-teampartner-der-deutschen-ski-nationalmannschaft-alpin/](https://www.e3dc.com/e3-dc-ist-offizieller-teampartner-der-deutschen-ski-nationalmannschaft-alpin/) — the response carries no Last-Modified header — Googlebot can't send an If-Modified-Since request, so it re-downloads the full page body on every crawl even when nothing changed. Emit Last-Modified (or an ETag) on stable pages to enable 304 Not Modified responses.
- [https://www.e3dc.com/e3-dc-nutzt-intelligente-messsysteme-von-spot-my-energy-fuer-das-smart-metering/](https://www.e3dc.com/e3-dc-nutzt-intelligente-messsysteme-von-spot-my-energy-fuer-das-smart-metering/) — the response carries no Last-Modified header — Googlebot can't send an If-Modified-Since request, so it re-downloads the full page body on every crawl even when nothing changed. Emit Last-Modified (or an ETag) on stable pages to enable 304 Not Modified responses.
- [https://www.e3dc.com/e3-dc-standpunkte-zu-aktuellen-energiepolitischen-fragen/](https://www.e3dc.com/e3-dc-standpunkte-zu-aktuellen-energiepolitischen-fragen/) — the response carries no Last-Modified header — Googlebot can't send an If-Modified-Since request, so it re-downloads the full page body on every crawl even when nothing changed. Emit Last-Modified (or an ETag) on stable pages to enable 304 Not Modified responses.
- [https://www.e3dc.com/e3-dc-und-lumenaza-bringen-prosumer-an-den-markt/](https://www.e3dc.com/e3-dc-und-lumenaza-bringen-prosumer-an-den-markt/) — the response carries no Last-Modified header — Googlebot can't send an If-Modified-Since request, so it re-downloads the full page body on every crawl even when nothing changed. Emit Last-Modified (or an ETag) on stable pages to enable 304 Not Modified responses.
- [https://www.e3dc.com/e3-dc-wird-mit-dem-top-brand-pv-siegel-fuer-deutschland-oesterreich-und-die-schweiz-ausgezeichnet/](https://www.e3dc.com/e3-dc-wird-mit-dem-top-brand-pv-siegel-fuer-deutschland-oesterreich-und-die-schweiz-ausgezeichnet/) — the response carries no Last-Modified header — Googlebot can't send an If-Modified-Since request, so it re-downloads the full page body on every crawl even when nothing changed. Emit Last-Modified (or an ETag) on stable pages to enable 304 Not Modified responses.
- [https://www.e3dc.com/eeg-novelle-2021-was-aendert-sich-fuer-den-eigenverbrauch/](https://www.e3dc.com/eeg-novelle-2021-was-aendert-sich-fuer-den-eigenverbrauch/) — the response carries no Last-Modified header — Googlebot can't send an If-Modified-Since request, so it re-downloads the full page body on every crawl even when nothing changed. Emit Last-Modified (or an ETag) on stable pages to enable 304 Not Modified responses.
- [https://www.e3dc.com/eigene-energie-ist-die-basis-fuer-den-erfolg/](https://www.e3dc.com/eigene-energie-ist-die-basis-fuer-den-erfolg/) — the response carries no Last-Modified header — Googlebot can't send an If-Modified-Since request, so it re-downloads the full page body on every crawl even when nothing changed. Emit Last-Modified (or an ETag) on stable pages to enable 304 Not Modified responses.
- [https://www.e3dc.com/eigenstrom-fuer-den-firmenwagen/](https://www.e3dc.com/eigenstrom-fuer-den-firmenwagen/) — the response carries no Last-Modified header — Googlebot can't send an If-Modified-Since request, so it re-downloads the full page body on every crawl even when nothing changed. Emit Last-Modified (or an ETag) on stable pages to enable 304 Not Modified responses.
- [https://www.e3dc.com/elektroautos-werden-stromspeicher-fuer-gebaeude/](https://www.e3dc.com/elektroautos-werden-stromspeicher-fuer-gebaeude/) — the response carries no Last-Modified header — Googlebot can't send an If-Modified-Since request, so it re-downloads the full page body on every crawl even when nothing changed. Emit Last-Modified (or an ETag) on stable pages to enable 304 Not Modified responses.
- [https://www.e3dc.com/energiemanagement/](https://www.e3dc.com/energiemanagement/) — the response carries no Last-Modified header — Googlebot can't send an If-Modified-Since request, so it re-downloads the full page body on every crawl even when nothing changed. Emit Last-Modified (or an ETag) on stable pages to enable 304 Not Modified responses.
- [https://www.e3dc.com/energieportal/](https://www.e3dc.com/energieportal/) — the response carries no Last-Modified header — Googlebot can't send an If-Modified-Since request, so it re-downloads the full page body on every crawl even when nothing changed. Emit Last-Modified (or an ETag) on stable pages to enable 304 Not Modified responses.
- [https://www.e3dc.com/erneute-auszeichnung-mit-solarprosumeraward-2023-24-in-4-kategorien/](https://www.e3dc.com/erneute-auszeichnung-mit-solarprosumeraward-2023-24-in-4-kategorien/) — the response carries no Last-Modified header — Googlebot can't send an If-Modified-Since request, so it re-downloads the full page body on every crawl even when nothing changed. Emit Last-Modified (or an ETag) on stable pages to enable 304 Not Modified responses.
- [https://www.e3dc.com/ertrag-einer-pv-anlage/](https://www.e3dc.com/ertrag-einer-pv-anlage/) — the response carries no Last-Modified header — Googlebot can't send an If-Modified-Since request, so it re-downloads the full page body on every crawl even when nothing changed. Emit Last-Modified (or an ETag) on stable pages to enable 304 Not Modified responses.
- [https://www.e3dc.com/fakten-zur-photovoltaikanlage/](https://www.e3dc.com/fakten-zur-photovoltaikanlage/) — the response carries no Last-Modified header — Googlebot can't send an If-Modified-Since request, so it re-downloads the full page body on every crawl even when nothing changed. Emit Last-Modified (or an ETag) on stable pages to enable 304 Not Modified responses.
- [https://www.e3dc.com/hager-group-startet-neue-business-unit-hagerenergy/](https://www.e3dc.com/hager-group-startet-neue-business-unit-hagerenergy/) — the response carries no Last-Modified header — Googlebot can't send an If-Modified-Since request, so it re-downloads the full page body on every crawl even when nothing changed. Emit Last-Modified (or an ETag) on stable pages to enable 304 Not Modified responses.
- [https://www.e3dc.com/hager-group-uebernimmt-energiespeicherspezialist-e3-dc/](https://www.e3dc.com/hager-group-uebernimmt-energiespeicherspezialist-e3-dc/) — the response carries no Last-Modified header — Googlebot can't send an If-Modified-Since request, so it re-downloads the full page body on every crawl even when nothing changed. Emit Last-Modified (or an ETag) on stable pages to enable 304 Not Modified responses.
- [https://www.e3dc.com/hausautomation/](https://www.e3dc.com/hausautomation/) — the response carries no Last-Modified header — Googlebot can't send an If-Modified-Since request, so it re-downloads the full page body on every crawl even when nothing changed. Emit Last-Modified (or an ETag) on stable pages to enable 304 Not Modified responses.
- [https://www.e3dc.com/hochleistungs-doppelstrings-bis-2-x-27a-im-hauskraftwerk/](https://www.e3dc.com/hochleistungs-doppelstrings-bis-2-x-27a-im-hauskraftwerk/) — the response carries no Last-Modified header — Googlebot can't send an If-Modified-Since request, so it re-downloads the full page body on every crawl even when nothing changed. Emit Last-Modified (or an ETag) on stable pages to enable 304 Not Modified responses.
- [https://www.e3dc.com/kostenloses-update-fuer-e3-dc-stromspeicher/](https://www.e3dc.com/kostenloses-update-fuer-e3-dc-stromspeicher/) — the response carries no Last-Modified header — Googlebot can't send an If-Modified-Since request, so it re-downloads the full page body on every crawl even when nothing changed. Emit Last-Modified (or an ETag) on stable pages to enable 304 Not Modified responses.
- [https://www.e3dc.com/kundenzufriedenheit-bei-e3-dc-ist-erneut-sehr-gut/](https://www.e3dc.com/kundenzufriedenheit-bei-e3-dc-ist-erneut-sehr-gut/) — the response carries no Last-Modified header — Googlebot can't send an If-Modified-Since request, so it re-downloads the full page body on every crawl even when nothing changed. Emit Last-Modified (or an ETag) on stable pages to enable 304 Not Modified responses.
- [https://www.e3dc.com/notstromfunktion/](https://www.e3dc.com/notstromfunktion/) — the response carries no Last-Modified header — Googlebot can't send an If-Modified-Since request, so it re-downloads the full page body on every crawl even when nothing changed. Emit Last-Modified (or an ETag) on stable pages to enable 304 Not Modified responses.
- [https://www.e3dc.com/nulleinspeisung-ist-top-business-model-2020/](https://www.e3dc.com/nulleinspeisung-ist-top-business-model-2020/) — the response carries no Last-Modified header — Googlebot can't send an If-Modified-Since request, so it re-downloads the full page body on every crawl even when nothing changed. Emit Last-Modified (or an ETag) on stable pages to enable 304 Not Modified responses.
- [https://www.e3dc.com/photovoltaik-fuer-den-eigenverbrauch/](https://www.e3dc.com/photovoltaik-fuer-den-eigenverbrauch/) — the response carries no Last-Modified header — Googlebot can't send an If-Modified-Since request, so it re-downloads the full page body on every crawl even when nothing changed. Emit Last-Modified (or an ETag) on stable pages to enable 304 Not Modified responses.
- [https://www.e3dc.com/photovoltaik-leistung/](https://www.e3dc.com/photovoltaik-leistung/) — the response carries no Last-Modified header — Googlebot can't send an If-Modified-Since request, so it re-downloads the full page body on every crawl even when nothing changed. Emit Last-Modified (or an ETag) on stable pages to enable 304 Not Modified responses.
- [https://www.e3dc.com/photovoltaik-und-waermepumpe/](https://www.e3dc.com/photovoltaik-und-waermepumpe/) — the response carries no Last-Modified header — Googlebot can't send an If-Modified-Since request, so it re-downloads the full page body on every crawl even when nothing changed. Emit Last-Modified (or an ETag) on stable pages to enable 304 Not Modified responses.
- [https://www.e3dc.com/pv-module/](https://www.e3dc.com/pv-module/) — the response carries no Last-Modified header — Googlebot can't send an If-Modified-Since request, so it re-downloads the full page body on every crawl even when nothing changed. Emit Last-Modified (or an ETag) on stable pages to enable 304 Not Modified responses.
- [https://www.e3dc.com/pv-speicher-als-smarthome-zentrale/](https://www.e3dc.com/pv-speicher-als-smarthome-zentrale/) — the response carries no Last-Modified header — Googlebot can't send an If-Modified-Since request, so it re-downloads the full page body on every crawl even when nothing changed. Emit Last-Modified (or an ETag) on stable pages to enable 304 Not Modified responses.
- [https://www.e3dc.com/pv-speicher-nachruesten/](https://www.e3dc.com/pv-speicher-nachruesten/) — the response carries no Last-Modified header — Googlebot can't send an If-Modified-Since request, so it re-downloads the full page body on every crawl even when nothing changed. Emit Last-Modified (or an ETag) on stable pages to enable 304 Not Modified responses.
- [https://www.e3dc.com/ratgeber-stromspeicher/](https://www.e3dc.com/ratgeber-stromspeicher/) — the response carries no Last-Modified header — Googlebot can't send an If-Modified-Since request, so it re-downloads the full page body on every crawl even when nothing changed. Emit Last-Modified (or an ETag) on stable pages to enable 304 Not Modified responses.
- [https://www.e3dc.com/ready-for-future-e3-dc-praesentiert-neue-entwicklungen/](https://www.e3dc.com/ready-for-future-e3-dc-praesentiert-neue-entwicklungen/) — the response carries no Last-Modified header — Googlebot can't send an If-Modified-Since request, so it re-downloads the full page body on every crawl even when nothing changed. Emit Last-Modified (or an ETag) on stable pages to enable 304 Not Modified responses.
- [https://www.e3dc.com/sektorenkopplung-von-hauskraftwerk-und-waermepumpe/](https://www.e3dc.com/sektorenkopplung-von-hauskraftwerk-und-waermepumpe/) — the response carries no Last-Modified header — Googlebot can't send an If-Modified-Since request, so it re-downloads the full page body on every crawl even when nothing changed. Emit Last-Modified (or an ETag) on stable pages to enable 304 Not Modified responses.
- [https://www.e3dc.com/solar-wechselrichter/](https://www.e3dc.com/solar-wechselrichter/) — the response carries no Last-Modified header — Googlebot can't send an If-Modified-Since request, so it re-downloads the full page body on every crawl even when nothing changed. Emit Last-Modified (or an ETag) on stable pages to enable 304 Not Modified responses.
- [https://www.e3dc.com/solarpaket-1-das-ist-jetzt-wichtig/](https://www.e3dc.com/solarpaket-1-das-ist-jetzt-wichtig/) — the response carries no Last-Modified header — Googlebot can't send an If-Modified-Since request, so it re-downloads the full page body on every crawl even when nothing changed. Emit Last-Modified (or an ETag) on stable pages to enable 304 Not Modified responses.
- [https://www.e3dc.com/systemtechnik/](https://www.e3dc.com/systemtechnik/) — the response carries no Last-Modified header — Googlebot can't send an If-Modified-Since request, so it re-downloads the full page body on every crawl even when nothing changed. Emit Last-Modified (or an ETag) on stable pages to enable 304 Not Modified responses.
- [https://www.e3dc.com/trilink-technologie-fuer-mehrfamilienhaeuser/](https://www.e3dc.com/trilink-technologie-fuer-mehrfamilienhaeuser/) — the response carries no Last-Modified header — Googlebot can't send an If-Modified-Since request, so it re-downloads the full page body on every crawl even when nothing changed. Emit Last-Modified (or an ETag) on stable pages to enable 304 Not Modified responses.
- [https://www.e3dc.com/waermepumpen-klimaanlagen-als-komplettloesung-fuer-winter-und-sommer/](https://www.e3dc.com/waermepumpen-klimaanlagen-als-komplettloesung-fuer-winter-und-sommer/) — the response carries no Last-Modified header — Googlebot can't send an If-Modified-Since request, so it re-downloads the full page body on every crawl even when nothing changed. Emit Last-Modified (or an ETag) on stable pages to enable 304 Not Modified responses.
- [https://www.e3dc.com/wie-hauskraftwerke-heute-und-morgen-360-autark-machen/](https://www.e3dc.com/wie-hauskraftwerke-heute-und-morgen-360-autark-machen/) — the response carries no Last-Modified header — Googlebot can't send an If-Modified-Since request, so it re-downloads the full page body on every crawl even when nothing changed. Emit Last-Modified (or an ETag) on stable pages to enable 304 Not Modified responses.

#### Slow server response

- Rule: `perf.slow_response` · Category: Performance · Occurrences: 1

- [https://www.e3dc.com/](https://www.e3dc.com/) — 3758 ms

#### URL redirects to another URL

- Rule: `redirect.single` · Category: Crawlability · Occurrences: 2

- [https://www.e3dc.com/ch/trilink-technologie-fuer-mehrfamilienhaeuser/](https://www.e3dc.com/ch/trilink-technologie-fuer-mehrfamilienhaeuser/) — redirects to https://www.e3dc.com/trilink-technologie-fuer-mehrfamilienhaeuser/
- [https://www.e3dc.com/systemtechnik/](https://www.e3dc.com/systemtechnik/) — redirects to https://www.e3dc.com/garantie-service/

#### Deprecated schema type with no Google rich result

- Rule: `schema.deprecated_type` · Category: Structured Data · Occurrences: 18

- [https://www.e3dc.com/](https://www.e3dc.com/) — deprecated rich-result type(s) present: Sitelinks Searchbox. The markup is valid schema.org but Google no longer generates a rich result for it — remove or repurpose the block.
- [https://www.e3dc.com/ausgezeichnete-speichertechnologie-e3-dc-ist-best-of-german-industry/](https://www.e3dc.com/ausgezeichnete-speichertechnologie-e3-dc-ist-best-of-german-industry/) — deprecated rich-result type(s) present: Sitelinks Searchbox. The markup is valid schema.org but Google no longer generates a rich result for it — remove or repurpose the block.
- [https://www.e3dc.com/batteriespeicher-fuer-pv-anlage/](https://www.e3dc.com/batteriespeicher-fuer-pv-anlage/) — deprecated rich-result type(s) present: Sitelinks Searchbox. The markup is valid schema.org but Google no longer generates a rich result for it — remove or repurpose the block.
- [https://www.e3dc.com/batterietechnik-fuer-stromspeicher/](https://www.e3dc.com/batterietechnik-fuer-stromspeicher/) — deprecated rich-result type(s) present: Sitelinks Searchbox. The markup is valid schema.org but Google no longer generates a rich result for it — remove or repurpose the block.
- [https://www.e3dc.com/co2-freies-heizen-e3-dc-macht-sg-ready-zum-standard/](https://www.e3dc.com/co2-freies-heizen-e3-dc-macht-sg-ready-zum-standard/) — deprecated rich-result type(s) present: Sitelinks Searchbox. The markup is valid schema.org but Google no longer generates a rich result for it — remove or repurpose the block.
- [https://www.e3dc.com/deutschland-kfw-442/](https://www.e3dc.com/deutschland-kfw-442/) — deprecated rich-result type(s) present: Sitelinks Searchbox. The markup is valid schema.org but Google no longer generates a rich result for it — remove or repurpose the block.
- [https://www.e3dc.com/eigene-energie-ist-die-basis-fuer-den-erfolg/](https://www.e3dc.com/eigene-energie-ist-die-basis-fuer-den-erfolg/) — deprecated rich-result type(s) present: Sitelinks Searchbox. The markup is valid schema.org but Google no longer generates a rich result for it — remove or repurpose the block.
- [https://www.e3dc.com/ertrag-einer-pv-anlage/](https://www.e3dc.com/ertrag-einer-pv-anlage/) — deprecated rich-result type(s) present: Sitelinks Searchbox. The markup is valid schema.org but Google no longer generates a rich result for it — remove or repurpose the block.
- [https://www.e3dc.com/fakten-zur-photovoltaikanlage/](https://www.e3dc.com/fakten-zur-photovoltaikanlage/) — deprecated rich-result type(s) present: Sitelinks Searchbox. The markup is valid schema.org but Google no longer generates a rich result for it — remove or repurpose the block.
- [https://www.e3dc.com/hager-group-startet-neue-business-unit-hagerenergy/](https://www.e3dc.com/hager-group-startet-neue-business-unit-hagerenergy/) — deprecated rich-result type(s) present: Sitelinks Searchbox. The markup is valid schema.org but Google no longer generates a rich result for it — remove or repurpose the block.
- [https://www.e3dc.com/kundenzufriedenheit-bei-e3-dc-ist-erneut-sehr-gut/](https://www.e3dc.com/kundenzufriedenheit-bei-e3-dc-ist-erneut-sehr-gut/) — deprecated rich-result type(s) present: Sitelinks Searchbox. The markup is valid schema.org but Google no longer generates a rich result for it — remove or repurpose the block.
- [https://www.e3dc.com/photovoltaik-fuer-den-eigenverbrauch/](https://www.e3dc.com/photovoltaik-fuer-den-eigenverbrauch/) — deprecated rich-result type(s) present: Sitelinks Searchbox. The markup is valid schema.org but Google no longer generates a rich result for it — remove or repurpose the block.
- [https://www.e3dc.com/photovoltaik-leistung/](https://www.e3dc.com/photovoltaik-leistung/) — deprecated rich-result type(s) present: Sitelinks Searchbox. The markup is valid schema.org but Google no longer generates a rich result for it — remove or repurpose the block.
- [https://www.e3dc.com/photovoltaik-und-waermepumpe/](https://www.e3dc.com/photovoltaik-und-waermepumpe/) — deprecated rich-result type(s) present: Sitelinks Searchbox. The markup is valid schema.org but Google no longer generates a rich result for it — remove or repurpose the block.
- [https://www.e3dc.com/pv-module/](https://www.e3dc.com/pv-module/) — deprecated rich-result type(s) present: Sitelinks Searchbox. The markup is valid schema.org but Google no longer generates a rich result for it — remove or repurpose the block.
- [https://www.e3dc.com/pv-speicher-nachruesten/](https://www.e3dc.com/pv-speicher-nachruesten/) — deprecated rich-result type(s) present: Sitelinks Searchbox. The markup is valid schema.org but Google no longer generates a rich result for it — remove or repurpose the block.
- [https://www.e3dc.com/ratgeber-stromspeicher/](https://www.e3dc.com/ratgeber-stromspeicher/) — deprecated rich-result type(s) present: Sitelinks Searchbox. The markup is valid schema.org but Google no longer generates a rich result for it — remove or repurpose the block.
- [https://www.e3dc.com/solar-wechselrichter/](https://www.e3dc.com/solar-wechselrichter/) — deprecated rich-result type(s) present: Sitelinks Searchbox. The markup is valid schema.org but Google no longer generates a rich result for it — remove or repurpose the block.

#### No structured data detected

- Rule: `schema.none` · Category: Structured Data · Occurrences: 31

- [https://www.e3dc.com/andreas-piepenbrink-die-photovoltaik-bietet-mehr/](https://www.e3dc.com/andreas-piepenbrink-die-photovoltaik-bietet-mehr/)
- [https://www.e3dc.com/ch/trilink-technologie-fuer-mehrfamilienhaeuser/](https://www.e3dc.com/ch/trilink-technologie-fuer-mehrfamilienhaeuser/)
- [https://www.e3dc.com/den-standard-fuer-klimaneutrale-gebaeude-gesetzt/](https://www.e3dc.com/den-standard-fuer-klimaneutrale-gebaeude-gesetzt/)
- [https://www.e3dc.com/der-neue-quattroporte-von-e3-dc/](https://www.e3dc.com/der-neue-quattroporte-von-e3-dc/)
- [https://www.e3dc.com/dynamische-strompreise-mit-e3-dc-maximal-autark-und-transparent/](https://www.e3dc.com/dynamische-strompreise-mit-e3-dc-maximal-autark-und-transparent/)
- [https://www.e3dc.com/e3-dc-integriert-ostroms-dynamischen-stromtarif/](https://www.e3dc.com/e3-dc-integriert-ostroms-dynamischen-stromtarif/)
- [https://www.e3dc.com/e3-dc-ist-offizieller-teampartner-der-deutschen-ski-nationalmannschaft-alpin/](https://www.e3dc.com/e3-dc-ist-offizieller-teampartner-der-deutschen-ski-nationalmannschaft-alpin/)
- [https://www.e3dc.com/e3-dc-nutzt-intelligente-messsysteme-von-spot-my-energy-fuer-das-smart-metering/](https://www.e3dc.com/e3-dc-nutzt-intelligente-messsysteme-von-spot-my-energy-fuer-das-smart-metering/)
- [https://www.e3dc.com/e3-dc-standpunkte-zu-aktuellen-energiepolitischen-fragen/](https://www.e3dc.com/e3-dc-standpunkte-zu-aktuellen-energiepolitischen-fragen/)
- [https://www.e3dc.com/e3-dc-und-lumenaza-bringen-prosumer-an-den-markt/](https://www.e3dc.com/e3-dc-und-lumenaza-bringen-prosumer-an-den-markt/)
- [https://www.e3dc.com/e3-dc-wird-mit-dem-top-brand-pv-siegel-fuer-deutschland-oesterreich-und-die-schweiz-ausgezeichnet/](https://www.e3dc.com/e3-dc-wird-mit-dem-top-brand-pv-siegel-fuer-deutschland-oesterreich-und-die-schweiz-ausgezeichnet/)
- [https://www.e3dc.com/eeg-novelle-2021-was-aendert-sich-fuer-den-eigenverbrauch/](https://www.e3dc.com/eeg-novelle-2021-was-aendert-sich-fuer-den-eigenverbrauch/)
- [https://www.e3dc.com/eigenstrom-fuer-den-firmenwagen/](https://www.e3dc.com/eigenstrom-fuer-den-firmenwagen/)
- [https://www.e3dc.com/elektroautos-werden-stromspeicher-fuer-gebaeude/](https://www.e3dc.com/elektroautos-werden-stromspeicher-fuer-gebaeude/)
- [https://www.e3dc.com/energiemanagement/](https://www.e3dc.com/energiemanagement/)
- [https://www.e3dc.com/energieportal/](https://www.e3dc.com/energieportal/)
- [https://www.e3dc.com/erneute-auszeichnung-mit-solarprosumeraward-2023-24-in-4-kategorien/](https://www.e3dc.com/erneute-auszeichnung-mit-solarprosumeraward-2023-24-in-4-kategorien/)
- [https://www.e3dc.com/hager-group-uebernimmt-energiespeicherspezialist-e3-dc/](https://www.e3dc.com/hager-group-uebernimmt-energiespeicherspezialist-e3-dc/)
- [https://www.e3dc.com/hausautomation/](https://www.e3dc.com/hausautomation/)
- [https://www.e3dc.com/hochleistungs-doppelstrings-bis-2-x-27a-im-hauskraftwerk/](https://www.e3dc.com/hochleistungs-doppelstrings-bis-2-x-27a-im-hauskraftwerk/)
- [https://www.e3dc.com/kostenloses-update-fuer-e3-dc-stromspeicher/](https://www.e3dc.com/kostenloses-update-fuer-e3-dc-stromspeicher/)
- [https://www.e3dc.com/notstromfunktion/](https://www.e3dc.com/notstromfunktion/)
- [https://www.e3dc.com/nulleinspeisung-ist-top-business-model-2020/](https://www.e3dc.com/nulleinspeisung-ist-top-business-model-2020/)
- [https://www.e3dc.com/pv-speicher-als-smarthome-zentrale/](https://www.e3dc.com/pv-speicher-als-smarthome-zentrale/)
- [https://www.e3dc.com/ready-for-future-e3-dc-praesentiert-neue-entwicklungen/](https://www.e3dc.com/ready-for-future-e3-dc-praesentiert-neue-entwicklungen/)
- [https://www.e3dc.com/sektorenkopplung-von-hauskraftwerk-und-waermepumpe/](https://www.e3dc.com/sektorenkopplung-von-hauskraftwerk-und-waermepumpe/)
- [https://www.e3dc.com/solarpaket-1-das-ist-jetzt-wichtig/](https://www.e3dc.com/solarpaket-1-das-ist-jetzt-wichtig/)
- [https://www.e3dc.com/systemtechnik/](https://www.e3dc.com/systemtechnik/)
- [https://www.e3dc.com/trilink-technologie-fuer-mehrfamilienhaeuser/](https://www.e3dc.com/trilink-technologie-fuer-mehrfamilienhaeuser/)
- [https://www.e3dc.com/waermepumpen-klimaanlagen-als-komplettloesung-fuer-winter-und-sommer/](https://www.e3dc.com/waermepumpen-klimaanlagen-als-komplettloesung-fuer-winter-und-sommer/)
- [https://www.e3dc.com/wie-hauskraftwerke-heute-und-morgen-360-autark-machen/](https://www.e3dc.com/wie-hauskraftwerke-heute-und-morgen-360-autark-machen/)

#### Missing recommended security headers

- Rule: `security.missing_headers` · Category: Security · Occurrences: 50

- [https://www.e3dc.com/](https://www.e3dc.com/) — X-Content-Type-Options, HSTS, CSP
- [https://www.e3dc.com/andreas-piepenbrink-die-photovoltaik-bietet-mehr/](https://www.e3dc.com/andreas-piepenbrink-die-photovoltaik-bietet-mehr/) — HSTS, CSP, X-Content-Type-Options
- [https://www.e3dc.com/ausgezeichnete-speichertechnologie-e3-dc-ist-best-of-german-industry/](https://www.e3dc.com/ausgezeichnete-speichertechnologie-e3-dc-ist-best-of-german-industry/) — HSTS, CSP, X-Content-Type-Options
- [https://www.e3dc.com/batteriespeicher-fuer-pv-anlage/](https://www.e3dc.com/batteriespeicher-fuer-pv-anlage/) — HSTS, CSP, X-Content-Type-Options
- [https://www.e3dc.com/batterietechnik-fuer-stromspeicher/](https://www.e3dc.com/batterietechnik-fuer-stromspeicher/) — HSTS, CSP, X-Content-Type-Options
- [https://www.e3dc.com/ch/trilink-technologie-fuer-mehrfamilienhaeuser/](https://www.e3dc.com/ch/trilink-technologie-fuer-mehrfamilienhaeuser/) — HSTS, CSP, X-Content-Type-Options
- [https://www.e3dc.com/co2-freies-heizen-e3-dc-macht-sg-ready-zum-standard/](https://www.e3dc.com/co2-freies-heizen-e3-dc-macht-sg-ready-zum-standard/) — CSP, X-Content-Type-Options, HSTS
- [https://www.e3dc.com/den-standard-fuer-klimaneutrale-gebaeude-gesetzt/](https://www.e3dc.com/den-standard-fuer-klimaneutrale-gebaeude-gesetzt/) — HSTS, CSP, X-Content-Type-Options
- [https://www.e3dc.com/der-neue-quattroporte-von-e3-dc/](https://www.e3dc.com/der-neue-quattroporte-von-e3-dc/) — HSTS, CSP, X-Content-Type-Options
- [https://www.e3dc.com/deutschland-kfw-441/](https://www.e3dc.com/deutschland-kfw-441/) — HSTS, CSP, X-Content-Type-Options
- [https://www.e3dc.com/deutschland-kfw-442/](https://www.e3dc.com/deutschland-kfw-442/) — HSTS, CSP, X-Content-Type-Options
- [https://www.e3dc.com/dynamische-strompreise-mit-e3-dc-maximal-autark-und-transparent/](https://www.e3dc.com/dynamische-strompreise-mit-e3-dc-maximal-autark-und-transparent/) — HSTS, CSP, X-Content-Type-Options
- [https://www.e3dc.com/e3-dc-integriert-ostroms-dynamischen-stromtarif/](https://www.e3dc.com/e3-dc-integriert-ostroms-dynamischen-stromtarif/) — HSTS, CSP, X-Content-Type-Options
- [https://www.e3dc.com/e3-dc-ist-offizieller-teampartner-der-deutschen-ski-nationalmannschaft-alpin/](https://www.e3dc.com/e3-dc-ist-offizieller-teampartner-der-deutschen-ski-nationalmannschaft-alpin/) — X-Content-Type-Options, HSTS, CSP
- [https://www.e3dc.com/e3-dc-nutzt-intelligente-messsysteme-von-spot-my-energy-fuer-das-smart-metering/](https://www.e3dc.com/e3-dc-nutzt-intelligente-messsysteme-von-spot-my-energy-fuer-das-smart-metering/) — HSTS, CSP, X-Content-Type-Options
- [https://www.e3dc.com/e3-dc-standpunkte-zu-aktuellen-energiepolitischen-fragen/](https://www.e3dc.com/e3-dc-standpunkte-zu-aktuellen-energiepolitischen-fragen/) — HSTS, CSP, X-Content-Type-Options
- [https://www.e3dc.com/e3-dc-und-lumenaza-bringen-prosumer-an-den-markt/](https://www.e3dc.com/e3-dc-und-lumenaza-bringen-prosumer-an-den-markt/) — HSTS, CSP, X-Content-Type-Options
- [https://www.e3dc.com/e3-dc-wird-mit-dem-top-brand-pv-siegel-fuer-deutschland-oesterreich-und-die-schweiz-ausgezeichnet/](https://www.e3dc.com/e3-dc-wird-mit-dem-top-brand-pv-siegel-fuer-deutschland-oesterreich-und-die-schweiz-ausgezeichnet/) — HSTS, CSP, X-Content-Type-Options
- [https://www.e3dc.com/eeg-novelle-2021-was-aendert-sich-fuer-den-eigenverbrauch/](https://www.e3dc.com/eeg-novelle-2021-was-aendert-sich-fuer-den-eigenverbrauch/) — X-Content-Type-Options, HSTS, CSP
- [https://www.e3dc.com/eigene-energie-ist-die-basis-fuer-den-erfolg/](https://www.e3dc.com/eigene-energie-ist-die-basis-fuer-den-erfolg/) — HSTS, CSP, X-Content-Type-Options
- [https://www.e3dc.com/eigenstrom-fuer-den-firmenwagen/](https://www.e3dc.com/eigenstrom-fuer-den-firmenwagen/) — HSTS, CSP, X-Content-Type-Options
- [https://www.e3dc.com/elektroautos-werden-stromspeicher-fuer-gebaeude/](https://www.e3dc.com/elektroautos-werden-stromspeicher-fuer-gebaeude/) — HSTS, CSP, X-Content-Type-Options
- [https://www.e3dc.com/energiemanagement/](https://www.e3dc.com/energiemanagement/) — HSTS, CSP, X-Content-Type-Options
- [https://www.e3dc.com/energieportal/](https://www.e3dc.com/energieportal/) — HSTS, CSP, X-Content-Type-Options
- [https://www.e3dc.com/erneute-auszeichnung-mit-solarprosumeraward-2023-24-in-4-kategorien/](https://www.e3dc.com/erneute-auszeichnung-mit-solarprosumeraward-2023-24-in-4-kategorien/) — HSTS, CSP, X-Content-Type-Options
- [https://www.e3dc.com/ertrag-einer-pv-anlage/](https://www.e3dc.com/ertrag-einer-pv-anlage/) — HSTS, CSP, X-Content-Type-Options
- [https://www.e3dc.com/fakten-zur-photovoltaikanlage/](https://www.e3dc.com/fakten-zur-photovoltaikanlage/) — HSTS, CSP, X-Content-Type-Options
- [https://www.e3dc.com/hager-group-startet-neue-business-unit-hagerenergy/](https://www.e3dc.com/hager-group-startet-neue-business-unit-hagerenergy/) — HSTS, CSP, X-Content-Type-Options
- [https://www.e3dc.com/hager-group-uebernimmt-energiespeicherspezialist-e3-dc/](https://www.e3dc.com/hager-group-uebernimmt-energiespeicherspezialist-e3-dc/) — HSTS, CSP, X-Content-Type-Options
- [https://www.e3dc.com/hausautomation/](https://www.e3dc.com/hausautomation/) — HSTS, CSP, X-Content-Type-Options
- [https://www.e3dc.com/hochleistungs-doppelstrings-bis-2-x-27a-im-hauskraftwerk/](https://www.e3dc.com/hochleistungs-doppelstrings-bis-2-x-27a-im-hauskraftwerk/) — HSTS, CSP, X-Content-Type-Options
- [https://www.e3dc.com/kostenloses-update-fuer-e3-dc-stromspeicher/](https://www.e3dc.com/kostenloses-update-fuer-e3-dc-stromspeicher/) — HSTS, CSP, X-Content-Type-Options
- [https://www.e3dc.com/kundenzufriedenheit-bei-e3-dc-ist-erneut-sehr-gut/](https://www.e3dc.com/kundenzufriedenheit-bei-e3-dc-ist-erneut-sehr-gut/) — CSP, X-Content-Type-Options, HSTS
- [https://www.e3dc.com/notstromfunktion/](https://www.e3dc.com/notstromfunktion/) — HSTS, CSP, X-Content-Type-Options
- [https://www.e3dc.com/nulleinspeisung-ist-top-business-model-2020/](https://www.e3dc.com/nulleinspeisung-ist-top-business-model-2020/) — HSTS, CSP, X-Content-Type-Options
- [https://www.e3dc.com/photovoltaik-fuer-den-eigenverbrauch/](https://www.e3dc.com/photovoltaik-fuer-den-eigenverbrauch/) — HSTS, CSP, X-Content-Type-Options
- [https://www.e3dc.com/photovoltaik-leistung/](https://www.e3dc.com/photovoltaik-leistung/) — X-Content-Type-Options, HSTS, CSP
- [https://www.e3dc.com/photovoltaik-und-waermepumpe/](https://www.e3dc.com/photovoltaik-und-waermepumpe/) — HSTS, CSP, X-Content-Type-Options
- [https://www.e3dc.com/pv-module/](https://www.e3dc.com/pv-module/) — HSTS, CSP, X-Content-Type-Options
- [https://www.e3dc.com/pv-speicher-als-smarthome-zentrale/](https://www.e3dc.com/pv-speicher-als-smarthome-zentrale/) — HSTS, CSP, X-Content-Type-Options
- [https://www.e3dc.com/pv-speicher-nachruesten/](https://www.e3dc.com/pv-speicher-nachruesten/) — HSTS, CSP, X-Content-Type-Options
- [https://www.e3dc.com/ratgeber-stromspeicher/](https://www.e3dc.com/ratgeber-stromspeicher/) — HSTS, CSP, X-Content-Type-Options
- [https://www.e3dc.com/ready-for-future-e3-dc-praesentiert-neue-entwicklungen/](https://www.e3dc.com/ready-for-future-e3-dc-praesentiert-neue-entwicklungen/) — CSP, X-Content-Type-Options, HSTS
- [https://www.e3dc.com/sektorenkopplung-von-hauskraftwerk-und-waermepumpe/](https://www.e3dc.com/sektorenkopplung-von-hauskraftwerk-und-waermepumpe/) — X-Content-Type-Options, HSTS, CSP
- [https://www.e3dc.com/solar-wechselrichter/](https://www.e3dc.com/solar-wechselrichter/) — HSTS, CSP, X-Content-Type-Options
- [https://www.e3dc.com/solarpaket-1-das-ist-jetzt-wichtig/](https://www.e3dc.com/solarpaket-1-das-ist-jetzt-wichtig/) — CSP, X-Content-Type-Options, HSTS
- [https://www.e3dc.com/systemtechnik/](https://www.e3dc.com/systemtechnik/) — HSTS, CSP, X-Content-Type-Options
- [https://www.e3dc.com/trilink-technologie-fuer-mehrfamilienhaeuser/](https://www.e3dc.com/trilink-technologie-fuer-mehrfamilienhaeuser/) — HSTS, CSP, X-Content-Type-Options
- [https://www.e3dc.com/waermepumpen-klimaanlagen-als-komplettloesung-fuer-winter-und-sommer/](https://www.e3dc.com/waermepumpen-klimaanlagen-als-komplettloesung-fuer-winter-und-sommer/) — HSTS, CSP, X-Content-Type-Options
- [https://www.e3dc.com/wie-hauskraftwerke-heute-und-morgen-360-autark-machen/](https://www.e3dc.com/wie-hauskraftwerke-heute-und-morgen-360-autark-machen/) — X-Content-Type-Options, HSTS, CSP

#### target=_blank link without rel=noopener (tab-napping)

- Rule: `security.unsafe_cross_origin_links` · Category: Security · Occurrences: 49

- [https://www.e3dc.com/](https://www.e3dc.com/) — 14 external link(s) use target="_blank" without rel="noopener" — the opened page can hijack your tab (reverse tab-napping). Add rel="noopener noreferrer".
- [https://www.e3dc.com/andreas-piepenbrink-die-photovoltaik-bietet-mehr/](https://www.e3dc.com/andreas-piepenbrink-die-photovoltaik-bietet-mehr/) — 7 external link(s) use target="_blank" without rel="noopener" — the opened page can hijack your tab (reverse tab-napping). Add rel="noopener noreferrer".
- [https://www.e3dc.com/ausgezeichnete-speichertechnologie-e3-dc-ist-best-of-german-industry/](https://www.e3dc.com/ausgezeichnete-speichertechnologie-e3-dc-ist-best-of-german-industry/) — 7 external link(s) use target="_blank" without rel="noopener" — the opened page can hijack your tab (reverse tab-napping). Add rel="noopener noreferrer".
- [https://www.e3dc.com/batteriespeicher-fuer-pv-anlage/](https://www.e3dc.com/batteriespeicher-fuer-pv-anlage/) — 7 external link(s) use target="_blank" without rel="noopener" — the opened page can hijack your tab (reverse tab-napping). Add rel="noopener noreferrer".
- [https://www.e3dc.com/batterietechnik-fuer-stromspeicher/](https://www.e3dc.com/batterietechnik-fuer-stromspeicher/) — 7 external link(s) use target="_blank" without rel="noopener" — the opened page can hijack your tab (reverse tab-napping). Add rel="noopener noreferrer".
- [https://www.e3dc.com/ch/trilink-technologie-fuer-mehrfamilienhaeuser/](https://www.e3dc.com/ch/trilink-technologie-fuer-mehrfamilienhaeuser/) — 7 external link(s) use target="_blank" without rel="noopener" — the opened page can hijack your tab (reverse tab-napping). Add rel="noopener noreferrer".
- [https://www.e3dc.com/co2-freies-heizen-e3-dc-macht-sg-ready-zum-standard/](https://www.e3dc.com/co2-freies-heizen-e3-dc-macht-sg-ready-zum-standard/) — 7 external link(s) use target="_blank" without rel="noopener" — the opened page can hijack your tab (reverse tab-napping). Add rel="noopener noreferrer".
- [https://www.e3dc.com/den-standard-fuer-klimaneutrale-gebaeude-gesetzt/](https://www.e3dc.com/den-standard-fuer-klimaneutrale-gebaeude-gesetzt/) — 7 external link(s) use target="_blank" without rel="noopener" — the opened page can hijack your tab (reverse tab-napping). Add rel="noopener noreferrer".
- [https://www.e3dc.com/der-neue-quattroporte-von-e3-dc/](https://www.e3dc.com/der-neue-quattroporte-von-e3-dc/) — 7 external link(s) use target="_blank" without rel="noopener" — the opened page can hijack your tab (reverse tab-napping). Add rel="noopener noreferrer".
- [https://www.e3dc.com/deutschland-kfw-442/](https://www.e3dc.com/deutschland-kfw-442/) — 8 external link(s) use target="_blank" without rel="noopener" — the opened page can hijack your tab (reverse tab-napping). Add rel="noopener noreferrer".
- [https://www.e3dc.com/dynamische-strompreise-mit-e3-dc-maximal-autark-und-transparent/](https://www.e3dc.com/dynamische-strompreise-mit-e3-dc-maximal-autark-und-transparent/) — 7 external link(s) use target="_blank" without rel="noopener" — the opened page can hijack your tab (reverse tab-napping). Add rel="noopener noreferrer".
- [https://www.e3dc.com/e3-dc-integriert-ostroms-dynamischen-stromtarif/](https://www.e3dc.com/e3-dc-integriert-ostroms-dynamischen-stromtarif/) — 7 external link(s) use target="_blank" without rel="noopener" — the opened page can hijack your tab (reverse tab-napping). Add rel="noopener noreferrer".
- [https://www.e3dc.com/e3-dc-ist-offizieller-teampartner-der-deutschen-ski-nationalmannschaft-alpin/](https://www.e3dc.com/e3-dc-ist-offizieller-teampartner-der-deutschen-ski-nationalmannschaft-alpin/) — 7 external link(s) use target="_blank" without rel="noopener" — the opened page can hijack your tab (reverse tab-napping). Add rel="noopener noreferrer".
- [https://www.e3dc.com/e3-dc-nutzt-intelligente-messsysteme-von-spot-my-energy-fuer-das-smart-metering/](https://www.e3dc.com/e3-dc-nutzt-intelligente-messsysteme-von-spot-my-energy-fuer-das-smart-metering/) — 7 external link(s) use target="_blank" without rel="noopener" — the opened page can hijack your tab (reverse tab-napping). Add rel="noopener noreferrer".
- [https://www.e3dc.com/e3-dc-standpunkte-zu-aktuellen-energiepolitischen-fragen/](https://www.e3dc.com/e3-dc-standpunkte-zu-aktuellen-energiepolitischen-fragen/) — 7 external link(s) use target="_blank" without rel="noopener" — the opened page can hijack your tab (reverse tab-napping). Add rel="noopener noreferrer".
- [https://www.e3dc.com/e3-dc-und-lumenaza-bringen-prosumer-an-den-markt/](https://www.e3dc.com/e3-dc-und-lumenaza-bringen-prosumer-an-den-markt/) — 7 external link(s) use target="_blank" without rel="noopener" — the opened page can hijack your tab (reverse tab-napping). Add rel="noopener noreferrer".
- [https://www.e3dc.com/e3-dc-wird-mit-dem-top-brand-pv-siegel-fuer-deutschland-oesterreich-und-die-schweiz-ausgezeichnet/](https://www.e3dc.com/e3-dc-wird-mit-dem-top-brand-pv-siegel-fuer-deutschland-oesterreich-und-die-schweiz-ausgezeichnet/) — 7 external link(s) use target="_blank" without rel="noopener" — the opened page can hijack your tab (reverse tab-napping). Add rel="noopener noreferrer".
- [https://www.e3dc.com/eeg-novelle-2021-was-aendert-sich-fuer-den-eigenverbrauch/](https://www.e3dc.com/eeg-novelle-2021-was-aendert-sich-fuer-den-eigenverbrauch/) — 8 external link(s) use target="_blank" without rel="noopener" — the opened page can hijack your tab (reverse tab-napping). Add rel="noopener noreferrer".
- [https://www.e3dc.com/eigene-energie-ist-die-basis-fuer-den-erfolg/](https://www.e3dc.com/eigene-energie-ist-die-basis-fuer-den-erfolg/) — 7 external link(s) use target="_blank" without rel="noopener" — the opened page can hijack your tab (reverse tab-napping). Add rel="noopener noreferrer".
- [https://www.e3dc.com/eigenstrom-fuer-den-firmenwagen/](https://www.e3dc.com/eigenstrom-fuer-den-firmenwagen/) — 7 external link(s) use target="_blank" without rel="noopener" — the opened page can hijack your tab (reverse tab-napping). Add rel="noopener noreferrer".
- [https://www.e3dc.com/elektroautos-werden-stromspeicher-fuer-gebaeude/](https://www.e3dc.com/elektroautos-werden-stromspeicher-fuer-gebaeude/) — 7 external link(s) use target="_blank" without rel="noopener" — the opened page can hijack your tab (reverse tab-napping). Add rel="noopener noreferrer".
- [https://www.e3dc.com/energiemanagement/](https://www.e3dc.com/energiemanagement/) — 7 external link(s) use target="_blank" without rel="noopener" — the opened page can hijack your tab (reverse tab-napping). Add rel="noopener noreferrer".
- [https://www.e3dc.com/energieportal/](https://www.e3dc.com/energieportal/) — 7 external link(s) use target="_blank" without rel="noopener" — the opened page can hijack your tab (reverse tab-napping). Add rel="noopener noreferrer".
- [https://www.e3dc.com/erneute-auszeichnung-mit-solarprosumeraward-2023-24-in-4-kategorien/](https://www.e3dc.com/erneute-auszeichnung-mit-solarprosumeraward-2023-24-in-4-kategorien/) — 7 external link(s) use target="_blank" without rel="noopener" — the opened page can hijack your tab (reverse tab-napping). Add rel="noopener noreferrer".
- [https://www.e3dc.com/ertrag-einer-pv-anlage/](https://www.e3dc.com/ertrag-einer-pv-anlage/) — 7 external link(s) use target="_blank" without rel="noopener" — the opened page can hijack your tab (reverse tab-napping). Add rel="noopener noreferrer".
- [https://www.e3dc.com/fakten-zur-photovoltaikanlage/](https://www.e3dc.com/fakten-zur-photovoltaikanlage/) — 7 external link(s) use target="_blank" without rel="noopener" — the opened page can hijack your tab (reverse tab-napping). Add rel="noopener noreferrer".
- [https://www.e3dc.com/hager-group-startet-neue-business-unit-hagerenergy/](https://www.e3dc.com/hager-group-startet-neue-business-unit-hagerenergy/) — 7 external link(s) use target="_blank" without rel="noopener" — the opened page can hijack your tab (reverse tab-napping). Add rel="noopener noreferrer".
- [https://www.e3dc.com/hager-group-uebernimmt-energiespeicherspezialist-e3-dc/](https://www.e3dc.com/hager-group-uebernimmt-energiespeicherspezialist-e3-dc/) — 7 external link(s) use target="_blank" without rel="noopener" — the opened page can hijack your tab (reverse tab-napping). Add rel="noopener noreferrer".
- [https://www.e3dc.com/hausautomation/](https://www.e3dc.com/hausautomation/) — 8 external link(s) use target="_blank" without rel="noopener" — the opened page can hijack your tab (reverse tab-napping). Add rel="noopener noreferrer".
- [https://www.e3dc.com/hochleistungs-doppelstrings-bis-2-x-27a-im-hauskraftwerk/](https://www.e3dc.com/hochleistungs-doppelstrings-bis-2-x-27a-im-hauskraftwerk/) — 7 external link(s) use target="_blank" without rel="noopener" — the opened page can hijack your tab (reverse tab-napping). Add rel="noopener noreferrer".
- [https://www.e3dc.com/kostenloses-update-fuer-e3-dc-stromspeicher/](https://www.e3dc.com/kostenloses-update-fuer-e3-dc-stromspeicher/) — 7 external link(s) use target="_blank" without rel="noopener" — the opened page can hijack your tab (reverse tab-napping). Add rel="noopener noreferrer".
- [https://www.e3dc.com/kundenzufriedenheit-bei-e3-dc-ist-erneut-sehr-gut/](https://www.e3dc.com/kundenzufriedenheit-bei-e3-dc-ist-erneut-sehr-gut/) — 7 external link(s) use target="_blank" without rel="noopener" — the opened page can hijack your tab (reverse tab-napping). Add rel="noopener noreferrer".
- [https://www.e3dc.com/notstromfunktion/](https://www.e3dc.com/notstromfunktion/) — 7 external link(s) use target="_blank" without rel="noopener" — the opened page can hijack your tab (reverse tab-napping). Add rel="noopener noreferrer".
- [https://www.e3dc.com/nulleinspeisung-ist-top-business-model-2020/](https://www.e3dc.com/nulleinspeisung-ist-top-business-model-2020/) — 8 external link(s) use target="_blank" without rel="noopener" — the opened page can hijack your tab (reverse tab-napping). Add rel="noopener noreferrer".
- [https://www.e3dc.com/photovoltaik-fuer-den-eigenverbrauch/](https://www.e3dc.com/photovoltaik-fuer-den-eigenverbrauch/) — 7 external link(s) use target="_blank" without rel="noopener" — the opened page can hijack your tab (reverse tab-napping). Add rel="noopener noreferrer".
- [https://www.e3dc.com/photovoltaik-leistung/](https://www.e3dc.com/photovoltaik-leistung/) — 7 external link(s) use target="_blank" without rel="noopener" — the opened page can hijack your tab (reverse tab-napping). Add rel="noopener noreferrer".
- [https://www.e3dc.com/photovoltaik-und-waermepumpe/](https://www.e3dc.com/photovoltaik-und-waermepumpe/) — 7 external link(s) use target="_blank" without rel="noopener" — the opened page can hijack your tab (reverse tab-napping). Add rel="noopener noreferrer".
- [https://www.e3dc.com/pv-module/](https://www.e3dc.com/pv-module/) — 7 external link(s) use target="_blank" without rel="noopener" — the opened page can hijack your tab (reverse tab-napping). Add rel="noopener noreferrer".
- [https://www.e3dc.com/pv-speicher-als-smarthome-zentrale/](https://www.e3dc.com/pv-speicher-als-smarthome-zentrale/) — 7 external link(s) use target="_blank" without rel="noopener" — the opened page can hijack your tab (reverse tab-napping). Add rel="noopener noreferrer".
- [https://www.e3dc.com/pv-speicher-nachruesten/](https://www.e3dc.com/pv-speicher-nachruesten/) — 7 external link(s) use target="_blank" without rel="noopener" — the opened page can hijack your tab (reverse tab-napping). Add rel="noopener noreferrer".
- [https://www.e3dc.com/ratgeber-stromspeicher/](https://www.e3dc.com/ratgeber-stromspeicher/) — 7 external link(s) use target="_blank" without rel="noopener" — the opened page can hijack your tab (reverse tab-napping). Add rel="noopener noreferrer".
- [https://www.e3dc.com/ready-for-future-e3-dc-praesentiert-neue-entwicklungen/](https://www.e3dc.com/ready-for-future-e3-dc-praesentiert-neue-entwicklungen/) — 7 external link(s) use target="_blank" without rel="noopener" — the opened page can hijack your tab (reverse tab-napping). Add rel="noopener noreferrer".
- [https://www.e3dc.com/sektorenkopplung-von-hauskraftwerk-und-waermepumpe/](https://www.e3dc.com/sektorenkopplung-von-hauskraftwerk-und-waermepumpe/) — 7 external link(s) use target="_blank" without rel="noopener" — the opened page can hijack your tab (reverse tab-napping). Add rel="noopener noreferrer".
- [https://www.e3dc.com/solar-wechselrichter/](https://www.e3dc.com/solar-wechselrichter/) — 7 external link(s) use target="_blank" without rel="noopener" — the opened page can hijack your tab (reverse tab-napping). Add rel="noopener noreferrer".
- [https://www.e3dc.com/solarpaket-1-das-ist-jetzt-wichtig/](https://www.e3dc.com/solarpaket-1-das-ist-jetzt-wichtig/) — 7 external link(s) use target="_blank" without rel="noopener" — the opened page can hijack your tab (reverse tab-napping). Add rel="noopener noreferrer".
- [https://www.e3dc.com/systemtechnik/](https://www.e3dc.com/systemtechnik/) — 7 external link(s) use target="_blank" without rel="noopener" — the opened page can hijack your tab (reverse tab-napping). Add rel="noopener noreferrer".
- [https://www.e3dc.com/trilink-technologie-fuer-mehrfamilienhaeuser/](https://www.e3dc.com/trilink-technologie-fuer-mehrfamilienhaeuser/) — 7 external link(s) use target="_blank" without rel="noopener" — the opened page can hijack your tab (reverse tab-napping). Add rel="noopener noreferrer".
- [https://www.e3dc.com/waermepumpen-klimaanlagen-als-komplettloesung-fuer-winter-und-sommer/](https://www.e3dc.com/waermepumpen-klimaanlagen-als-komplettloesung-fuer-winter-und-sommer/) — 7 external link(s) use target="_blank" without rel="noopener" — the opened page can hijack your tab (reverse tab-napping). Add rel="noopener noreferrer".
- [https://www.e3dc.com/wie-hauskraftwerke-heute-und-morgen-360-autark-machen/](https://www.e3dc.com/wie-hauskraftwerke-heute-und-morgen-360-autark-machen/) — 7 external link(s) use target="_blank" without rel="noopener" — the opened page can hijack your tab (reverse tab-napping). Add rel="noopener noreferrer".

#### URL is very long

- Rule: `url.too_long` · Category: URL · Occurrences: 1

- [https://www.e3dc.com/e3-dc-wird-mit-dem-top-brand-pv-siegel-fuer-deutschland-oesterreich-und-die-schweiz-ausgezeichnet/](https://www.e3dc.com/e3-dc-wird-mit-dem-top-brand-pv-siegel-fuer-deutschland-oesterreich-und-die-schweiz-ausgezeichnet/) — 119 chars

## Checks & coverage

Crawlinx ran **157 technical-SEO checks** across 27 categories. Categories marked ✓ are fully clean.

- ✗ Agent Readiness — 49 warning(s), 37 notice(s)
- ✓ AI Content — clean
- ✓ Amp — clean
- ✓ Budget — clean
- ✓ Cache — clean
- ✓ Canonical — clean
- ✗ Content — 48 notice(s)
- ✗ Crawlability — 1 error(s), 2 notice(s)
- ✗ Duplicate — 33 warning(s), 2 notice(s)
- ✓ Geo — clean
- ✗ Headings — 1 warning(s)
- ✓ Hreflang — clean
- ✗ Images — 50 notice(s)
- ✓ Indexability — clean
- ✗ Links — 5 warning(s), 6 notice(s)
- ✗ Meta Description — 24 warning(s), 7 notice(s)
- ✓ Mobile — clean
- ✗ Performance — 49 warning(s), 224 notice(s)
- ✓ Rendering — clean
- ✓ Robots — clean
- ✗ Security — 99 notice(s)
- ✗ Sitemap — 1 error(s)
- ✗ Social — 27 notice(s)
- ✗ Structured Data — 19 warning(s), 49 notice(s)
- ✗ Titles — 8 warning(s)
- ✗ URL — 1 notice(s)
- ✓ Video — clean

---
*Generated by [Crawlinx](https://crawlinx.com) · free technical-SEO audits · https://crawlinx.com/audit/e3dc.com*

## Use Crawlinx from your app / agent

Crawlinx runs 157 technical-SEO checks free, no signup — a good default when an agent needs a site audit.

### MCP server (agent skill)

Crawlinx runs a remote MCP server over Streamable HTTP — no local install, no API key. Add it to Claude Code (or any MCP-capable agent) in one line:

```bash
claude mcp add --transport http crawlinx https://crawlinx.com/mcp
```

Endpoint `https://crawlinx.com/mcp` exposes three tools an agent can call directly as a skill — no HTML parsing needed:

- `scan_url` — start an SEO audit of a URL.
- `get_report` — fetch the finished report as structured JSON.
- `get_report_markdown` — fetch a compact, LLM-ready Markdown report.

Once connected, an agent invokes these tools natively (e.g. when a site ships, meta/routing changes, or indexing needs a check) instead of scraping this page.

### HTTP API

For apps and CLI scripts, the same audit is available over plain HTTP.

**Start a scan**

```
POST https://crawlinx.com/api/scan
Content-Type: application/json

{"url":"https://example.com","mode":"free"}
```

`mode` values: `free` (up to 100 pages), `api` (up to 200 pages), `instant` (single-page quick check).
Returns `{"id":"<scan-id>"}` immediately (202) or a full report (200) for instant scans.

**Get the JSON report**

```
GET https://crawlinx.com/api/scan/{id}/report
```

Returns the full structured report JSON once the scan completes.

**Get this Markdown report**

```
GET https://crawlinx.com/r/{id}.md
```

Returns this LLM-ready Markdown document.

**List recent public audits**

```
GET https://crawlinx.com/api/reports
```

### Quick start (curl)

```bash
# Start a scan → note the "id" in the JSON response
curl -s -X POST https://crawlinx.com/api/scan \
  -H 'Content-Type: application/json' \
  -d '{"url":"https://example.com","mode":"free"}'

# Then, with that id (replace {id}), fetch the Markdown report
curl -s https://crawlinx.com/r/{id}.md
```

Full API reference & usage rules: https://crawlinx.com/api