---
tool: Crawlinx SEO audit
source: https://crawlinx.com
domain: zstech.ch
report_url: "https://crawlinx.com/audit/zstech.ch"
crawl_id: 20260725T130457-67b0515b
health_score: 65
generated_at: 2026-07-29T00:38:03Z
total_pages: 17
html_pages: 17
indexable_pages: 17
errors: 0
warnings: 59
notices: 184
---

# SEO audit: zstech.ch

**Health score: 65/100** — needs attention

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

## Overview

| Metric | Value |
| --- | --- |
| Pages crawled | 17 |
| HTML pages | 17 |
| Indexable | 17 |
| Non-indexable | 0 |
| Orphan pages | 1 |
| Broken internal links | 0 |
| Avg response time | 939 ms |
| Errors / Warnings / Notices | 0 / 59 / 184 |
| Status codes | 17×200 |

## Categories

| Category | Score | Errors | Warnings | Notices |
| --- | ---: | ---: | ---: | ---: |
| Agent Readiness | 72 | 0 | 16 | 24 |
| Images | 72 | 0 | 16 | 16 |
| Content | 77 | 0 | 13 | 5 |
| Meta Description | 82 | 0 | 10 | 6 |
| Crawlability | 98 | 0 | 1 | 0 |
| Headings | 98 | 0 | 1 | 1 |
| Links | 98 | 0 | 1 | 22 |
| Structured Data | 98 | 0 | 1 | 16 |
| Duplicate | 100 | 0 | 0 | 6 |
| Performance | 100 | 0 | 0 | 54 |
| Security | 100 | 0 | 0 | 16 |
| Social | 100 | 0 | 0 | 16 |
| URL | 100 | 0 | 0 | 2 |

## Issues

### Warnings (59)

#### Control has no accessible name

- Rule: `agent.control_no_name` · Category: Agent Readiness · Occurrences: 16

- [https://www.zstech.ch/](https://www.zstech.ch/) — 2 button/link(s) with no text or aria-label — an agent can't target them
- [https://www.zstech.ch/category/uncategorized/](https://www.zstech.ch/category/uncategorized/) — 2 button/link(s) with no text or aria-label — an agent can't target them
- [https://www.zstech.ch/datenschutzerklaerung/](https://www.zstech.ch/datenschutzerklaerung/) — 2 button/link(s) with no text or aria-label — an agent can't target them
- [https://www.zstech.ch/downloads/](https://www.zstech.ch/downloads/) — 2 button/link(s) with no text or aria-label — an agent can't target them
- [https://www.zstech.ch/impressum/](https://www.zstech.ch/impressum/) — 2 button/link(s) with no text or aria-label — an agent can't target them
- [https://www.zstech.ch/optionen/](https://www.zstech.ch/optionen/) — 2 button/link(s) with no text or aria-label — an agent can't target them
- [https://www.zstech.ch/optionen/datenauswertung-via-datenbank-zadat/](https://www.zstech.ch/optionen/datenauswertung-via-datenbank-zadat/) — 2 button/link(s) with no text or aria-label — an agent can't target them
- [https://www.zstech.ch/optionen/happy-hour-zaws/](https://www.zstech.ch/optionen/happy-hour-zaws/) — 2 button/link(s) with no text or aria-label — an agent can't target them
- [https://www.zstech.ch/optionen/la%CC%88ngenerkennung-tiefenerkennung-zalek/](https://www.zstech.ch/optionen/la%CC%88ngenerkennung-tiefenerkennung-zalek/) — 2 button/link(s) with no text or aria-label — an agent can't target them
- [https://www.zstech.ch/optionen/sto%CC%88rungsmeldung-via-mail-zamail/](https://www.zstech.ch/optionen/sto%CC%88rungsmeldung-via-mail-zamail/) — 2 button/link(s) with no text or aria-label — an agent can't target them
- [https://www.zstech.ch/produkte/](https://www.zstech.ch/produkte/) — 2 button/link(s) with no text or aria-label — an agent can't target them
- [https://www.zstech.ch/produkte/jetonwechsler-br35jet/](https://www.zstech.ch/produkte/jetonwechsler-br35jet/) — 2 button/link(s) with no text or aria-label — an agent can't target them
- [https://www.zstech.ch/produkte/kundenspezifische-anlagen-spezialanfertigungen/](https://www.zstech.ch/produkte/kundenspezifische-anlagen-spezialanfertigungen/) — 2 button/link(s) with no text or aria-label — an agent can't target them
- [https://www.zstech.ch/produkte/zahlsystem-br26f/](https://www.zstech.ch/produkte/zahlsystem-br26f/) — 2 button/link(s) with no text or aria-label — an agent can't target them
- [https://www.zstech.ch/produkte/zahlsystem-br26w/](https://www.zstech.ch/produkte/zahlsystem-br26w/) — 2 button/link(s) with no text or aria-label — an agent can't target them
- [https://www.zstech.ch/produkte/zahlsystem-br37w/](https://www.zstech.ch/produkte/zahlsystem-br37w/) — 2 button/link(s) with no text or aria-label — an agent can't target them

#### Thin content (low word count)

- Rule: `content.thin` · Category: Content · Occurrences: 13

- [https://www.zstech.ch/](https://www.zstech.ch/) — 106 words
- [https://www.zstech.ch/category/uncategorized/](https://www.zstech.ch/category/uncategorized/) — 92 words
- [https://www.zstech.ch/downloads/](https://www.zstech.ch/downloads/) — 29 words
- [https://www.zstech.ch/impressum/](https://www.zstech.ch/impressum/) — 28 words
- [https://www.zstech.ch/optionen/](https://www.zstech.ch/optionen/) — 71 words
- [https://www.zstech.ch/optionen/datenauswertung-via-datenbank-zadat/](https://www.zstech.ch/optionen/datenauswertung-via-datenbank-zadat/) — 81 words
- [https://www.zstech.ch/optionen/happy-hour-zaws/](https://www.zstech.ch/optionen/happy-hour-zaws/) — 84 words
- [https://www.zstech.ch/optionen/la%CC%88ngenerkennung-tiefenerkennung-zalek/](https://www.zstech.ch/optionen/la%CC%88ngenerkennung-tiefenerkennung-zalek/) — 103 words
- [https://www.zstech.ch/optionen/sto%CC%88rungsmeldung-via-mail-zamail/](https://www.zstech.ch/optionen/sto%CC%88rungsmeldung-via-mail-zamail/) — 78 words
- [https://www.zstech.ch/produkte/](https://www.zstech.ch/produkte/) — 67 words
- [https://www.zstech.ch/produkte/jetonwechsler-br35jet/](https://www.zstech.ch/produkte/jetonwechsler-br35jet/) — 123 words
- [https://www.zstech.ch/produkte/kundenspezifische-anlagen-spezialanfertigungen/](https://www.zstech.ch/produkte/kundenspezifische-anlagen-spezialanfertigungen/) — 58 words
- [https://www.zstech.ch/produkte/zahlsystem-br26f/](https://www.zstech.ch/produkte/zahlsystem-br26f/) — 162 words

#### Incomplete/empty response after retries (likely transient — re-crawl)

- Rule: `fetch.incomplete` · Category: Crawlability · Occurrences: 1

- [https://www.zstech.ch/hello-world/](https://www.zstech.ch/hello-world/) — HTTP 200, 0 words after 3 attempts

#### Missing <h1>

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

- [https://www.zstech.ch/category/uncategorized/](https://www.zstech.ch/category/uncategorized/)

#### Images missing alt text

- Rule: `images.missing_alt` · Category: Images · Occurrences: 16

- [https://www.zstech.ch/](https://www.zstech.ch/) — 2 of 2 images missing alt
- [https://www.zstech.ch/category/uncategorized/](https://www.zstech.ch/category/uncategorized/) — 2 of 2 images missing alt
- [https://www.zstech.ch/datenschutzerklaerung/](https://www.zstech.ch/datenschutzerklaerung/) — 2 of 2 images missing alt
- [https://www.zstech.ch/downloads/](https://www.zstech.ch/downloads/) — 2 of 2 images missing alt
- [https://www.zstech.ch/impressum/](https://www.zstech.ch/impressum/) — 2 of 2 images missing alt
- [https://www.zstech.ch/optionen/](https://www.zstech.ch/optionen/) — 2 of 6 images missing alt
- [https://www.zstech.ch/optionen/datenauswertung-via-datenbank-zadat/](https://www.zstech.ch/optionen/datenauswertung-via-datenbank-zadat/) — 2 of 6 images missing alt
- [https://www.zstech.ch/optionen/happy-hour-zaws/](https://www.zstech.ch/optionen/happy-hour-zaws/) — 2 of 3 images missing alt
- [https://www.zstech.ch/optionen/la%CC%88ngenerkennung-tiefenerkennung-zalek/](https://www.zstech.ch/optionen/la%CC%88ngenerkennung-tiefenerkennung-zalek/) — 2 of 3 images missing alt
- [https://www.zstech.ch/optionen/sto%CC%88rungsmeldung-via-mail-zamail/](https://www.zstech.ch/optionen/sto%CC%88rungsmeldung-via-mail-zamail/) — 2 of 3 images missing alt
- [https://www.zstech.ch/produkte/](https://www.zstech.ch/produkte/) — 2 of 7 images missing alt
- [https://www.zstech.ch/produkte/jetonwechsler-br35jet/](https://www.zstech.ch/produkte/jetonwechsler-br35jet/) — 2 of 4 images missing alt
- [https://www.zstech.ch/produkte/kundenspezifische-anlagen-spezialanfertigungen/](https://www.zstech.ch/produkte/kundenspezifische-anlagen-spezialanfertigungen/) — 2 of 8 images missing alt
- [https://www.zstech.ch/produkte/zahlsystem-br26f/](https://www.zstech.ch/produkte/zahlsystem-br26f/) — 2 of 3 images missing alt
- [https://www.zstech.ch/produkte/zahlsystem-br26w/](https://www.zstech.ch/produkte/zahlsystem-br26w/) — 2 of 4 images missing alt
- [https://www.zstech.ch/produkte/zahlsystem-br37w/](https://www.zstech.ch/produkte/zahlsystem-br37w/) — 2 of 4 images missing alt

#### Orphan page (no internal inlinks)

- Rule: `links.orphan` · Category: Links · Occurrences: 1

- [https://www.zstech.ch/category/uncategorized/](https://www.zstech.ch/category/uncategorized/) — no internal links point here

#### Missing meta description

- Rule: `meta_desc.missing` · Category: Meta Description · Occurrences: 10

- [https://www.zstech.ch/category/uncategorized/](https://www.zstech.ch/category/uncategorized/)
- [https://www.zstech.ch/optionen/datenauswertung-via-datenbank-zadat/](https://www.zstech.ch/optionen/datenauswertung-via-datenbank-zadat/)
- [https://www.zstech.ch/optionen/happy-hour-zaws/](https://www.zstech.ch/optionen/happy-hour-zaws/)
- [https://www.zstech.ch/optionen/la%CC%88ngenerkennung-tiefenerkennung-zalek/](https://www.zstech.ch/optionen/la%CC%88ngenerkennung-tiefenerkennung-zalek/)
- [https://www.zstech.ch/optionen/sto%CC%88rungsmeldung-via-mail-zamail/](https://www.zstech.ch/optionen/sto%CC%88rungsmeldung-via-mail-zamail/)
- [https://www.zstech.ch/produkte/jetonwechsler-br35jet/](https://www.zstech.ch/produkte/jetonwechsler-br35jet/)
- [https://www.zstech.ch/produkte/kundenspezifische-anlagen-spezialanfertigungen/](https://www.zstech.ch/produkte/kundenspezifische-anlagen-spezialanfertigungen/)
- [https://www.zstech.ch/produkte/zahlsystem-br26f/](https://www.zstech.ch/produkte/zahlsystem-br26f/)
- [https://www.zstech.ch/produkte/zahlsystem-br26w/](https://www.zstech.ch/produkte/zahlsystem-br26w/)
- [https://www.zstech.ch/produkte/zahlsystem-br37w/](https://www.zstech.ch/produkte/zahlsystem-br37w/)

#### BreadcrumbList present but structurally incomplete

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

- [https://www.zstech.ch/](https://www.zstech.ch/) — 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.

### Notices (184)

#### Heading levels skip a level

- Rule: `agent.heading_skip` · Category: Agent Readiness · Occurrences: 9

- [https://www.zstech.ch/datenschutzerklaerung/](https://www.zstech.ch/datenschutzerklaerung/) — h3 follows h1 — skips h2
- [https://www.zstech.ch/optionen/datenauswertung-via-datenbank-zadat/](https://www.zstech.ch/optionen/datenauswertung-via-datenbank-zadat/) — h3 follows h1 — skips h2
- [https://www.zstech.ch/optionen/happy-hour-zaws/](https://www.zstech.ch/optionen/happy-hour-zaws/) — h3 follows h1 — skips h2
- [https://www.zstech.ch/optionen/la%CC%88ngenerkennung-tiefenerkennung-zalek/](https://www.zstech.ch/optionen/la%CC%88ngenerkennung-tiefenerkennung-zalek/) — h3 follows h1 — skips h2
- [https://www.zstech.ch/optionen/sto%CC%88rungsmeldung-via-mail-zamail/](https://www.zstech.ch/optionen/sto%CC%88rungsmeldung-via-mail-zamail/) — h3 follows h1 — skips h2
- [https://www.zstech.ch/produkte/jetonwechsler-br35jet/](https://www.zstech.ch/produkte/jetonwechsler-br35jet/) — h3 follows h1 — skips h2
- [https://www.zstech.ch/produkte/zahlsystem-br26f/](https://www.zstech.ch/produkte/zahlsystem-br26f/) — h3 follows h1 — skips h2
- [https://www.zstech.ch/produkte/zahlsystem-br26w/](https://www.zstech.ch/produkte/zahlsystem-br26w/) — h3 follows h1 — skips h2
- [https://www.zstech.ch/produkte/zahlsystem-br37w/](https://www.zstech.ch/produkte/zahlsystem-br37w/) — h3 follows h1 — skips h2

#### No llms.txt for AI agents

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

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

#### No main landmark for AI agents

- Rule: `agent.no_main_landmark` · Category: Agent Readiness · Occurrences: 14

- [https://www.zstech.ch/](https://www.zstech.ch/) — add a <main> element (or role=main) around the primary content
- [https://www.zstech.ch/category/uncategorized/](https://www.zstech.ch/category/uncategorized/) — add a <main> element (or role=main) around the primary content
- [https://www.zstech.ch/datenschutzerklaerung/](https://www.zstech.ch/datenschutzerklaerung/) — add a <main> element (or role=main) around the primary content
- [https://www.zstech.ch/optionen/](https://www.zstech.ch/optionen/) — add a <main> element (or role=main) around the primary content
- [https://www.zstech.ch/optionen/datenauswertung-via-datenbank-zadat/](https://www.zstech.ch/optionen/datenauswertung-via-datenbank-zadat/) — add a <main> element (or role=main) around the primary content
- [https://www.zstech.ch/optionen/happy-hour-zaws/](https://www.zstech.ch/optionen/happy-hour-zaws/) — add a <main> element (or role=main) around the primary content
- [https://www.zstech.ch/optionen/la%CC%88ngenerkennung-tiefenerkennung-zalek/](https://www.zstech.ch/optionen/la%CC%88ngenerkennung-tiefenerkennung-zalek/) — add a <main> element (or role=main) around the primary content
- [https://www.zstech.ch/optionen/sto%CC%88rungsmeldung-via-mail-zamail/](https://www.zstech.ch/optionen/sto%CC%88rungsmeldung-via-mail-zamail/) — add a <main> element (or role=main) around the primary content
- [https://www.zstech.ch/produkte/](https://www.zstech.ch/produkte/) — add a <main> element (or role=main) around the primary content
- [https://www.zstech.ch/produkte/jetonwechsler-br35jet/](https://www.zstech.ch/produkte/jetonwechsler-br35jet/) — add a <main> element (or role=main) around the primary content
- [https://www.zstech.ch/produkte/kundenspezifische-anlagen-spezialanfertigungen/](https://www.zstech.ch/produkte/kundenspezifische-anlagen-spezialanfertigungen/) — add a <main> element (or role=main) around the primary content
- [https://www.zstech.ch/produkte/zahlsystem-br26f/](https://www.zstech.ch/produkte/zahlsystem-br26f/) — add a <main> element (or role=main) around the primary content
- [https://www.zstech.ch/produkte/zahlsystem-br26w/](https://www.zstech.ch/produkte/zahlsystem-br26w/) — add a <main> element (or role=main) around the primary content
- [https://www.zstech.ch/produkte/zahlsystem-br37w/](https://www.zstech.ch/produkte/zahlsystem-br37w/) — add a <main> element (or role=main) around the primary content

#### Low text-to-HTML ratio

- Rule: `content.low_ratio` · Category: Content · Occurrences: 5

- [https://www.zstech.ch/downloads/](https://www.zstech.ch/downloads/) — 2.6%
- [https://www.zstech.ch/impressum/](https://www.zstech.ch/impressum/) — 2.6%
- [https://www.zstech.ch/optionen/](https://www.zstech.ch/optionen/) — 4.6%
- [https://www.zstech.ch/produkte/](https://www.zstech.ch/produkte/) — 4.5%
- [https://www.zstech.ch/produkte/kundenspezifische-anlagen-spezialanfertigungen/](https://www.zstech.ch/produkte/kundenspezifische-anlagen-spezialanfertigungen/) — 4.1%

#### Duplicate meta description across pages

- Rule: `duplicate.meta_desc` · Category: Duplicate · Occurrences: 6

- [https://www.zstech.ch/](https://www.zstech.ch/) — meta description shared by 6 pages: https://www.zstech.ch/produkte/, https://www.zstech.ch/optionen/, https://www.zstech.ch/impressum/
- [https://www.zstech.ch/datenschutzerklaerung/](https://www.zstech.ch/datenschutzerklaerung/) — meta description shared by 6 pages: https://www.zstech.ch/, https://www.zstech.ch/produkte/, https://www.zstech.ch/optionen/
- [https://www.zstech.ch/downloads/](https://www.zstech.ch/downloads/) — meta description shared by 6 pages: https://www.zstech.ch/, https://www.zstech.ch/produkte/, https://www.zstech.ch/optionen/
- [https://www.zstech.ch/impressum/](https://www.zstech.ch/impressum/) — meta description shared by 6 pages: https://www.zstech.ch/, https://www.zstech.ch/produkte/, https://www.zstech.ch/optionen/
- [https://www.zstech.ch/optionen/](https://www.zstech.ch/optionen/) — meta description shared by 6 pages: https://www.zstech.ch/, https://www.zstech.ch/produkte/, https://www.zstech.ch/impressum/
- [https://www.zstech.ch/produkte/](https://www.zstech.ch/produkte/) — meta description shared by 6 pages: https://www.zstech.ch/, https://www.zstech.ch/optionen/, https://www.zstech.ch/impressum/

#### Multiple <h1> elements

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

- [https://www.zstech.ch/](https://www.zstech.ch/) — 2 <h1> elements

#### Likely hero image lacks fetchpriority=high

- Rule: `images.hero_no_fetchpriority` · Category: Performance · Occurrences: 11

- [https://www.zstech.ch/optionen/](https://www.zstech.ch/optionen/) — the likely hero/LCP image (zadat_2-510x228.png) 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.zstech.ch/optionen/datenauswertung-via-datenbank-zadat/](https://www.zstech.ch/optionen/datenauswertung-via-datenbank-zadat/) — the likely hero/LCP image (zadat_2-510x228.png) 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.zstech.ch/optionen/happy-hour-zaws/](https://www.zstech.ch/optionen/happy-hour-zaws/) — the likely hero/LCP image (zaws-510x586.png) 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.zstech.ch/optionen/la%CC%88ngenerkennung-tiefenerkennung-zalek/](https://www.zstech.ch/optionen/la%CC%88ngenerkennung-tiefenerkennung-zalek/) — the likely hero/LCP image (höhenerkennung-angepasst-510x586.png) 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.zstech.ch/optionen/sto%CC%88rungsmeldung-via-mail-zamail/](https://www.zstech.ch/optionen/sto%CC%88rungsmeldung-via-mail-zamail/) — the likely hero/LCP image (e-mail-logo-510x586.png) 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.zstech.ch/produkte/](https://www.zstech.ch/produkte/) — the likely hero/LCP image (carhelbling-ibach-510x586.jpg) 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.zstech.ch/produkte/jetonwechsler-br35jet/](https://www.zstech.ch/produkte/jetonwechsler-br35jet/) — the likely hero/LCP image (carhelbling-ibach-510x586.jpg) 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.zstech.ch/produkte/kundenspezifische-anlagen-spezialanfertigungen/](https://www.zstech.ch/produkte/kundenspezifische-anlagen-spezialanfertigungen/) — the likely hero/LCP image (waschmaschinen-spital-baden-510x586.png) 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.zstech.ch/produkte/zahlsystem-br26f/](https://www.zstech.ch/produkte/zahlsystem-br26f/) — the likely hero/LCP image (26f-510x586.png) 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.zstech.ch/produkte/zahlsystem-br26w/](https://www.zstech.ch/produkte/zahlsystem-br26w/) — the likely hero/LCP image (br26w_2-510x586.png) 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.zstech.ch/produkte/zahlsystem-br37w/](https://www.zstech.ch/produkte/zahlsystem-br37w/) — the likely hero/LCP image (br37w_2-451x586.png) 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: 16

- [https://www.zstech.ch/](https://www.zstech.ch/) — 2 of 2 images without width/height
- [https://www.zstech.ch/category/uncategorized/](https://www.zstech.ch/category/uncategorized/) — 2 of 2 images without width/height
- [https://www.zstech.ch/datenschutzerklaerung/](https://www.zstech.ch/datenschutzerklaerung/) — 2 of 2 images without width/height
- [https://www.zstech.ch/downloads/](https://www.zstech.ch/downloads/) — 2 of 2 images without width/height
- [https://www.zstech.ch/impressum/](https://www.zstech.ch/impressum/) — 2 of 2 images without width/height
- [https://www.zstech.ch/optionen/](https://www.zstech.ch/optionen/) — 6 of 6 images without width/height
- [https://www.zstech.ch/optionen/datenauswertung-via-datenbank-zadat/](https://www.zstech.ch/optionen/datenauswertung-via-datenbank-zadat/) — 6 of 6 images without width/height
- [https://www.zstech.ch/optionen/happy-hour-zaws/](https://www.zstech.ch/optionen/happy-hour-zaws/) — 3 of 3 images without width/height
- [https://www.zstech.ch/optionen/la%CC%88ngenerkennung-tiefenerkennung-zalek/](https://www.zstech.ch/optionen/la%CC%88ngenerkennung-tiefenerkennung-zalek/) — 3 of 3 images without width/height
- [https://www.zstech.ch/optionen/sto%CC%88rungsmeldung-via-mail-zamail/](https://www.zstech.ch/optionen/sto%CC%88rungsmeldung-via-mail-zamail/) — 3 of 3 images without width/height
- [https://www.zstech.ch/produkte/](https://www.zstech.ch/produkte/) — 7 of 7 images without width/height
- [https://www.zstech.ch/produkte/jetonwechsler-br35jet/](https://www.zstech.ch/produkte/jetonwechsler-br35jet/) — 4 of 4 images without width/height
- [https://www.zstech.ch/produkte/kundenspezifische-anlagen-spezialanfertigungen/](https://www.zstech.ch/produkte/kundenspezifische-anlagen-spezialanfertigungen/) — 8 of 8 images without width/height
- [https://www.zstech.ch/produkte/zahlsystem-br26f/](https://www.zstech.ch/produkte/zahlsystem-br26f/) — 3 of 3 images without width/height
- [https://www.zstech.ch/produkte/zahlsystem-br26w/](https://www.zstech.ch/produkte/zahlsystem-br26w/) — 4 of 4 images without width/height
- [https://www.zstech.ch/produkte/zahlsystem-br37w/](https://www.zstech.ch/produkte/zahlsystem-br37w/) — 4 of 4 images without width/height

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

- Rule: `links.no_anchor_text` · Category: Links · Occurrences: 16

- [https://www.zstech.ch/](https://www.zstech.ch/) — 2 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.zstech.ch/category/uncategorized/](https://www.zstech.ch/category/uncategorized/) — 2 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.zstech.ch/datenschutzerklaerung/](https://www.zstech.ch/datenschutzerklaerung/) — 2 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.zstech.ch/downloads/](https://www.zstech.ch/downloads/) — 2 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.zstech.ch/impressum/](https://www.zstech.ch/impressum/) — 2 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.zstech.ch/optionen/](https://www.zstech.ch/optionen/) — 2 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.zstech.ch/optionen/datenauswertung-via-datenbank-zadat/](https://www.zstech.ch/optionen/datenauswertung-via-datenbank-zadat/) — 2 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.zstech.ch/optionen/happy-hour-zaws/](https://www.zstech.ch/optionen/happy-hour-zaws/) — 2 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.zstech.ch/optionen/la%CC%88ngenerkennung-tiefenerkennung-zalek/](https://www.zstech.ch/optionen/la%CC%88ngenerkennung-tiefenerkennung-zalek/) — 2 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.zstech.ch/optionen/sto%CC%88rungsmeldung-via-mail-zamail/](https://www.zstech.ch/optionen/sto%CC%88rungsmeldung-via-mail-zamail/) — 2 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.zstech.ch/produkte/](https://www.zstech.ch/produkte/) — 2 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.zstech.ch/produkte/jetonwechsler-br35jet/](https://www.zstech.ch/produkte/jetonwechsler-br35jet/) — 2 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.zstech.ch/produkte/kundenspezifische-anlagen-spezialanfertigungen/](https://www.zstech.ch/produkte/kundenspezifische-anlagen-spezialanfertigungen/) — 2 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.zstech.ch/produkte/zahlsystem-br26f/](https://www.zstech.ch/produkte/zahlsystem-br26f/) — 2 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.zstech.ch/produkte/zahlsystem-br26w/](https://www.zstech.ch/produkte/zahlsystem-br26w/) — 2 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.zstech.ch/produkte/zahlsystem-br37w/](https://www.zstech.ch/produkte/zahlsystem-br37w/) — 2 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.

#### Page has only one internal inlink (fragile crawl path)

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

- [https://www.zstech.ch/optionen/la%CC%88ngenerkennung-tiefenerkennung-zalek/](https://www.zstech.ch/optionen/la%CC%88ngenerkennung-tiefenerkennung-zalek/) — only one internal link points here — if that source changes, this page becomes an orphan. Add more contextual internal links to strengthen the crawl path.
- [https://www.zstech.ch/produkte/jetonwechsler-br35jet/](https://www.zstech.ch/produkte/jetonwechsler-br35jet/) — only one internal link points here — if that source changes, this page becomes an orphan. Add more contextual internal links to strengthen the crawl path.
- [https://www.zstech.ch/produkte/kundenspezifische-anlagen-spezialanfertigungen/](https://www.zstech.ch/produkte/kundenspezifische-anlagen-spezialanfertigungen/) — only one internal link points here — if that source changes, this page becomes an orphan. Add more contextual internal links to strengthen the crawl path.
- [https://www.zstech.ch/produkte/zahlsystem-br26f/](https://www.zstech.ch/produkte/zahlsystem-br26f/) — only one internal link points here — if that source changes, this page becomes an orphan. Add more contextual internal links to strengthen the crawl path.
- [https://www.zstech.ch/produkte/zahlsystem-br26w/](https://www.zstech.ch/produkte/zahlsystem-br26w/) — only one internal link points here — if that source changes, this page becomes an orphan. Add more contextual internal links to strengthen the crawl path.
- [https://www.zstech.ch/produkte/zahlsystem-br37w/](https://www.zstech.ch/produkte/zahlsystem-br37w/) — only one internal link points here — if that source changes, this page becomes an orphan. Add more contextual internal links to strengthen the crawl path.

#### Meta description too short

- Rule: `meta_desc.too_short` · Category: Meta Description · Occurrences: 6

- [https://www.zstech.ch/](https://www.zstech.ch/) — 1 chars
- [https://www.zstech.ch/datenschutzerklaerung/](https://www.zstech.ch/datenschutzerklaerung/) — 1 chars
- [https://www.zstech.ch/downloads/](https://www.zstech.ch/downloads/) — 1 chars
- [https://www.zstech.ch/impressum/](https://www.zstech.ch/impressum/) — 1 chars
- [https://www.zstech.ch/optionen/](https://www.zstech.ch/optionen/) — 1 chars
- [https://www.zstech.ch/produkte/](https://www.zstech.ch/produkte/) — 1 chars

#### Missing Open Graph tags

- Rule: `og.missing` · Category: Social · Occurrences: 16

- [https://www.zstech.ch/](https://www.zstech.ch/) — og:image
- [https://www.zstech.ch/category/uncategorized/](https://www.zstech.ch/category/uncategorized/) — og:description, og:image
- [https://www.zstech.ch/datenschutzerklaerung/](https://www.zstech.ch/datenschutzerklaerung/) — og:image
- [https://www.zstech.ch/downloads/](https://www.zstech.ch/downloads/) — og:image
- [https://www.zstech.ch/impressum/](https://www.zstech.ch/impressum/) — og:image
- [https://www.zstech.ch/optionen/](https://www.zstech.ch/optionen/) — og:image
- [https://www.zstech.ch/optionen/datenauswertung-via-datenbank-zadat/](https://www.zstech.ch/optionen/datenauswertung-via-datenbank-zadat/) — og:description, og:image
- [https://www.zstech.ch/optionen/happy-hour-zaws/](https://www.zstech.ch/optionen/happy-hour-zaws/) — og:description, og:image
- [https://www.zstech.ch/optionen/la%CC%88ngenerkennung-tiefenerkennung-zalek/](https://www.zstech.ch/optionen/la%CC%88ngenerkennung-tiefenerkennung-zalek/) — og:description, og:image
- [https://www.zstech.ch/optionen/sto%CC%88rungsmeldung-via-mail-zamail/](https://www.zstech.ch/optionen/sto%CC%88rungsmeldung-via-mail-zamail/) — og:description, og:image
- [https://www.zstech.ch/produkte/](https://www.zstech.ch/produkte/) — og:image
- [https://www.zstech.ch/produkte/jetonwechsler-br35jet/](https://www.zstech.ch/produkte/jetonwechsler-br35jet/) — og:description, og:image
- [https://www.zstech.ch/produkte/kundenspezifische-anlagen-spezialanfertigungen/](https://www.zstech.ch/produkte/kundenspezifische-anlagen-spezialanfertigungen/) — og:description, og:image
- [https://www.zstech.ch/produkte/zahlsystem-br26f/](https://www.zstech.ch/produkte/zahlsystem-br26f/) — og:description, og:image
- [https://www.zstech.ch/produkte/zahlsystem-br26w/](https://www.zstech.ch/produkte/zahlsystem-br26w/) — og:description, og:image
- [https://www.zstech.ch/produkte/zahlsystem-br37w/](https://www.zstech.ch/produkte/zahlsystem-br37w/) — og:description, og:image

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

- Rule: `perf.images_legacy_format` · Category: Performance · Occurrences: 11

- [https://www.zstech.ch/optionen/](https://www.zstech.ch/optionen/) — 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.zstech.ch/optionen/datenauswertung-via-datenbank-zadat/](https://www.zstech.ch/optionen/datenauswertung-via-datenbank-zadat/) — 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.zstech.ch/optionen/happy-hour-zaws/](https://www.zstech.ch/optionen/happy-hour-zaws/) — 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.zstech.ch/optionen/la%CC%88ngenerkennung-tiefenerkennung-zalek/](https://www.zstech.ch/optionen/la%CC%88ngenerkennung-tiefenerkennung-zalek/) — 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.zstech.ch/optionen/sto%CC%88rungsmeldung-via-mail-zamail/](https://www.zstech.ch/optionen/sto%CC%88rungsmeldung-via-mail-zamail/) — 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.zstech.ch/produkte/](https://www.zstech.ch/produkte/) — 5 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.zstech.ch/produkte/jetonwechsler-br35jet/](https://www.zstech.ch/produkte/jetonwechsler-br35jet/) — 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.zstech.ch/produkte/kundenspezifische-anlagen-spezialanfertigungen/](https://www.zstech.ch/produkte/kundenspezifische-anlagen-spezialanfertigungen/) — 6 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.zstech.ch/produkte/zahlsystem-br26f/](https://www.zstech.ch/produkte/zahlsystem-br26f/) — 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.zstech.ch/produkte/zahlsystem-br26w/](https://www.zstech.ch/produkte/zahlsystem-br26w/) — 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.zstech.ch/produkte/zahlsystem-br37w/](https://www.zstech.ch/produkte/zahlsystem-br37w/) — 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: 16

- [https://www.zstech.ch/](https://www.zstech.ch/) — 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.zstech.ch/category/uncategorized/](https://www.zstech.ch/category/uncategorized/) — 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.zstech.ch/datenschutzerklaerung/](https://www.zstech.ch/datenschutzerklaerung/) — 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.zstech.ch/downloads/](https://www.zstech.ch/downloads/) — 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.zstech.ch/impressum/](https://www.zstech.ch/impressum/) — 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.zstech.ch/optionen/](https://www.zstech.ch/optionen/) — 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.zstech.ch/optionen/datenauswertung-via-datenbank-zadat/](https://www.zstech.ch/optionen/datenauswertung-via-datenbank-zadat/) — 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.zstech.ch/optionen/happy-hour-zaws/](https://www.zstech.ch/optionen/happy-hour-zaws/) — 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.zstech.ch/optionen/la%CC%88ngenerkennung-tiefenerkennung-zalek/](https://www.zstech.ch/optionen/la%CC%88ngenerkennung-tiefenerkennung-zalek/) — 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.zstech.ch/optionen/sto%CC%88rungsmeldung-via-mail-zamail/](https://www.zstech.ch/optionen/sto%CC%88rungsmeldung-via-mail-zamail/) — 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.zstech.ch/produkte/](https://www.zstech.ch/produkte/) — 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.zstech.ch/produkte/jetonwechsler-br35jet/](https://www.zstech.ch/produkte/jetonwechsler-br35jet/) — 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.zstech.ch/produkte/kundenspezifische-anlagen-spezialanfertigungen/](https://www.zstech.ch/produkte/kundenspezifische-anlagen-spezialanfertigungen/) — 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.zstech.ch/produkte/zahlsystem-br26f/](https://www.zstech.ch/produkte/zahlsystem-br26f/) — 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.zstech.ch/produkte/zahlsystem-br26w/](https://www.zstech.ch/produkte/zahlsystem-br26w/) — 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.zstech.ch/produkte/zahlsystem-br37w/](https://www.zstech.ch/produkte/zahlsystem-br37w/) — 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: 16

- [https://www.zstech.ch/](https://www.zstech.ch/) — 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.zstech.ch/category/uncategorized/](https://www.zstech.ch/category/uncategorized/) — 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.zstech.ch/datenschutzerklaerung/](https://www.zstech.ch/datenschutzerklaerung/) — 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.zstech.ch/downloads/](https://www.zstech.ch/downloads/) — 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.zstech.ch/impressum/](https://www.zstech.ch/impressum/) — 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.zstech.ch/optionen/](https://www.zstech.ch/optionen/) — 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.zstech.ch/optionen/datenauswertung-via-datenbank-zadat/](https://www.zstech.ch/optionen/datenauswertung-via-datenbank-zadat/) — 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.zstech.ch/optionen/happy-hour-zaws/](https://www.zstech.ch/optionen/happy-hour-zaws/) — 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.zstech.ch/optionen/la%CC%88ngenerkennung-tiefenerkennung-zalek/](https://www.zstech.ch/optionen/la%CC%88ngenerkennung-tiefenerkennung-zalek/) — 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.zstech.ch/optionen/sto%CC%88rungsmeldung-via-mail-zamail/](https://www.zstech.ch/optionen/sto%CC%88rungsmeldung-via-mail-zamail/) — 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.zstech.ch/produkte/](https://www.zstech.ch/produkte/) — 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.zstech.ch/produkte/jetonwechsler-br35jet/](https://www.zstech.ch/produkte/jetonwechsler-br35jet/) — 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.zstech.ch/produkte/kundenspezifische-anlagen-spezialanfertigungen/](https://www.zstech.ch/produkte/kundenspezifische-anlagen-spezialanfertigungen/) — 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.zstech.ch/produkte/zahlsystem-br26f/](https://www.zstech.ch/produkte/zahlsystem-br26f/) — 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.zstech.ch/produkte/zahlsystem-br26w/](https://www.zstech.ch/produkte/zahlsystem-br26w/) — 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.zstech.ch/produkte/zahlsystem-br37w/](https://www.zstech.ch/produkte/zahlsystem-br37w/) — 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.

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

- Rule: `schema.deprecated_type` · Category: Structured Data · Occurrences: 16

- [https://www.zstech.ch/](https://www.zstech.ch/) — 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.zstech.ch/category/uncategorized/](https://www.zstech.ch/category/uncategorized/) — 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.zstech.ch/datenschutzerklaerung/](https://www.zstech.ch/datenschutzerklaerung/) — 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.zstech.ch/downloads/](https://www.zstech.ch/downloads/) — 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.zstech.ch/impressum/](https://www.zstech.ch/impressum/) — 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.zstech.ch/optionen/](https://www.zstech.ch/optionen/) — 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.zstech.ch/optionen/datenauswertung-via-datenbank-zadat/](https://www.zstech.ch/optionen/datenauswertung-via-datenbank-zadat/) — 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.zstech.ch/optionen/happy-hour-zaws/](https://www.zstech.ch/optionen/happy-hour-zaws/) — 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.zstech.ch/optionen/la%CC%88ngenerkennung-tiefenerkennung-zalek/](https://www.zstech.ch/optionen/la%CC%88ngenerkennung-tiefenerkennung-zalek/) — 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.zstech.ch/optionen/sto%CC%88rungsmeldung-via-mail-zamail/](https://www.zstech.ch/optionen/sto%CC%88rungsmeldung-via-mail-zamail/) — 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.zstech.ch/produkte/](https://www.zstech.ch/produkte/) — 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.zstech.ch/produkte/jetonwechsler-br35jet/](https://www.zstech.ch/produkte/jetonwechsler-br35jet/) — 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.zstech.ch/produkte/kundenspezifische-anlagen-spezialanfertigungen/](https://www.zstech.ch/produkte/kundenspezifische-anlagen-spezialanfertigungen/) — 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.zstech.ch/produkte/zahlsystem-br26f/](https://www.zstech.ch/produkte/zahlsystem-br26f/) — 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.zstech.ch/produkte/zahlsystem-br26w/](https://www.zstech.ch/produkte/zahlsystem-br26w/) — 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.zstech.ch/produkte/zahlsystem-br37w/](https://www.zstech.ch/produkte/zahlsystem-br37w/) — 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.

#### Missing recommended security headers

- Rule: `security.missing_headers` · Category: Security · Occurrences: 16

- [https://www.zstech.ch/](https://www.zstech.ch/) — HSTS, CSP, X-Content-Type-Options
- [https://www.zstech.ch/category/uncategorized/](https://www.zstech.ch/category/uncategorized/) — HSTS, CSP, X-Content-Type-Options
- [https://www.zstech.ch/datenschutzerklaerung/](https://www.zstech.ch/datenschutzerklaerung/) — HSTS, CSP, X-Content-Type-Options
- [https://www.zstech.ch/downloads/](https://www.zstech.ch/downloads/) — X-Content-Type-Options, HSTS, CSP
- [https://www.zstech.ch/impressum/](https://www.zstech.ch/impressum/) — HSTS, CSP, X-Content-Type-Options
- [https://www.zstech.ch/optionen/](https://www.zstech.ch/optionen/) — HSTS, CSP, X-Content-Type-Options
- [https://www.zstech.ch/optionen/datenauswertung-via-datenbank-zadat/](https://www.zstech.ch/optionen/datenauswertung-via-datenbank-zadat/) — HSTS, CSP, X-Content-Type-Options
- [https://www.zstech.ch/optionen/happy-hour-zaws/](https://www.zstech.ch/optionen/happy-hour-zaws/) — X-Content-Type-Options, HSTS, CSP
- [https://www.zstech.ch/optionen/la%CC%88ngenerkennung-tiefenerkennung-zalek/](https://www.zstech.ch/optionen/la%CC%88ngenerkennung-tiefenerkennung-zalek/) — HSTS, CSP, X-Content-Type-Options
- [https://www.zstech.ch/optionen/sto%CC%88rungsmeldung-via-mail-zamail/](https://www.zstech.ch/optionen/sto%CC%88rungsmeldung-via-mail-zamail/) — X-Content-Type-Options, HSTS, CSP
- [https://www.zstech.ch/produkte/](https://www.zstech.ch/produkte/) — CSP, X-Content-Type-Options, HSTS
- [https://www.zstech.ch/produkte/jetonwechsler-br35jet/](https://www.zstech.ch/produkte/jetonwechsler-br35jet/) — HSTS, CSP, X-Content-Type-Options
- [https://www.zstech.ch/produkte/kundenspezifische-anlagen-spezialanfertigungen/](https://www.zstech.ch/produkte/kundenspezifische-anlagen-spezialanfertigungen/) — HSTS, CSP, X-Content-Type-Options
- [https://www.zstech.ch/produkte/zahlsystem-br26f/](https://www.zstech.ch/produkte/zahlsystem-br26f/) — HSTS, CSP, X-Content-Type-Options
- [https://www.zstech.ch/produkte/zahlsystem-br26w/](https://www.zstech.ch/produkte/zahlsystem-br26w/) — HSTS, CSP, X-Content-Type-Options
- [https://www.zstech.ch/produkte/zahlsystem-br37w/](https://www.zstech.ch/produkte/zahlsystem-br37w/) — HSTS, CSP, X-Content-Type-Options

#### Non-ASCII characters in URL path

- Rule: `url.non_ascii` · Category: URL · Occurrences: 2

- [https://www.zstech.ch/optionen/la%CC%88ngenerkennung-tiefenerkennung-zalek/](https://www.zstech.ch/optionen/la%CC%88ngenerkennung-tiefenerkennung-zalek/)
- [https://www.zstech.ch/optionen/sto%CC%88rungsmeldung-via-mail-zamail/](https://www.zstech.ch/optionen/sto%CC%88rungsmeldung-via-mail-zamail/)

## Checks & coverage

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

- ✗ Agent Readiness — 16 warning(s), 24 notice(s)
- ✓ AI Content — clean
- ✓ Amp — clean
- ✓ Budget — clean
- ✓ Cache — clean
- ✓ Canonical — clean
- ✗ Content — 13 warning(s), 5 notice(s)
- ✗ Crawlability — 1 warning(s)
- ✗ Duplicate — 6 notice(s)
- ✓ Geo — clean
- ✗ Headings — 1 warning(s), 1 notice(s)
- ✓ Hreflang — clean
- ✗ Images — 16 warning(s), 16 notice(s)
- ✓ Indexability — clean
- ✗ Links — 1 warning(s), 22 notice(s)
- ✗ Meta Description — 10 warning(s), 6 notice(s)
- ✓ Mobile — clean
- ✗ Performance — 54 notice(s)
- ✓ Rendering — clean
- ✓ Robots — clean
- ✗ Security — 16 notice(s)
- ✓ Sitemap — clean
- ✗ Social — 16 notice(s)
- ✗ Structured Data — 1 warning(s), 16 notice(s)
- ✓ Titles — clean
- ✗ URL — 2 notice(s)
- ✓ Video — clean

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

## 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