---
tool: Crawlinx SEO audit
source: https://crawlinx.com
domain: vialligmbh.de
report_url: "https://crawlinx.com/audit/vialligmbh.de"
crawl_id: 20260724T194223-2b52b33f
health_score: 60
generated_at: 2026-07-29T00:39:44Z
total_pages: 25
html_pages: 25
indexable_pages: 21
errors: 4
warnings: 71
notices: 331
---

# SEO audit: vialligmbh.de

**Health score: 60/100** — needs attention

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

## Overview

| Metric | Value |
| --- | --- |
| Pages crawled | 25 |
| HTML pages | 25 |
| Indexable | 21 |
| Non-indexable | 0 |
| Orphan pages | 0 |
| Broken internal links | 0 |
| Avg response time | 1424 ms |
| Errors / Warnings / Notices | 4 / 71 / 331 |
| Status codes | 21×200, 2×404, 2×500 |

## Categories

| Category | Score | Errors | Warnings | Notices |
| --- | ---: | ---: | ---: | ---: |
| Crawlability | 90 | 2 | 2 | 0 |
| Sitemap | 92 | 2 | 0 | 0 |
| Agent Readiness | 75 | 0 | 21 | 31 |
| Images | 75 | 0 | 21 | 21 |
| Content | 83 | 0 | 14 | 37 |
| Duplicate | 89 | 0 | 9 | 9 |
| Canonical | 95 | 0 | 4 | 0 |
| Cache | 100 | 0 | 0 | 21 |
| Headings | 100 | 0 | 0 | 4 |
| Links | 100 | 0 | 0 | 21 |
| Meta Description | 100 | 0 | 0 | 14 |
| Performance | 100 | 0 | 0 | 79 |
| Security | 100 | 0 | 0 | 25 |
| Social | 100 | 0 | 0 | 42 |
| Structured Data | 100 | 0 | 0 | 21 |
| Titles | 100 | 0 | 0 | 4 |
| URL | 100 | 0 | 0 | 2 |

## Issues

### Errors (4)

#### Non-200 URL listed in sitemap

- Rule: `sitemap.not_200` · Category: Sitemap · Occurrences: 2

- [https://vialligmbh.de/german/uploads/1739280259VIALLI%20PP-RC%20&%20PP-RCT%20Product%20Catalogue%202025.pdf](https://vialligmbh.de/german/uploads/1739280259VIALLI%20PP-RC%20&%20PP-RCT%20Product%20Catalogue%202025.pdf) — listed in sitemap but status 404
- [https://vialligmbh.de/uploads/1739280192VIALLI%20PP-RC%20&%20PP-RCT%20Product%20Catalogue%202025.pdf](https://vialligmbh.de/uploads/1739280192VIALLI%20PP-RC%20&%20PP-RCT%20Product%20Catalogue%202025.pdf) — listed in sitemap but status 404

#### Client error (4xx) response

- Rule: `status.4xx` · Category: Crawlability · Occurrences: 2

- [https://vialligmbh.de/german/uploads/1739280259VIALLI%20PP-RC%20&%20PP-RCT%20Product%20Catalogue%202025.pdf](https://vialligmbh.de/german/uploads/1739280259VIALLI%20PP-RC%20&%20PP-RCT%20Product%20Catalogue%202025.pdf) — HTTP 404
- [https://vialligmbh.de/uploads/1739280192VIALLI%20PP-RC%20&%20PP-RCT%20Product%20Catalogue%202025.pdf](https://vialligmbh.de/uploads/1739280192VIALLI%20PP-RC%20&%20PP-RCT%20Product%20Catalogue%202025.pdf) — HTTP 404

### Warnings (71)

#### Control has no accessible name

- Rule: `agent.control_no_name` · Category: Agent Readiness · Occurrences: 21

- [https://vialligmbh.de/](https://vialligmbh.de/) — 5 button/link(s) with no text or aria-label — an agent can't target them
- [https://vialligmbh.de/about](https://vialligmbh.de/about) — 5 button/link(s) with no text or aria-label — an agent can't target them
- [https://vialligmbh.de/catalogue](https://vialligmbh.de/catalogue) — 5 button/link(s) with no text or aria-label — an agent can't target them
- [https://vialligmbh.de/certificate](https://vialligmbh.de/certificate) — 5 button/link(s) with no text or aria-label — an agent can't target them
- [https://vialligmbh.de/certificate/584](https://vialligmbh.de/certificate/584) — 5 button/link(s) with no text or aria-label — an agent can't target them
- [https://vialligmbh.de/contact](https://vialligmbh.de/contact) — 5 button/link(s) with no text or aria-label — an agent can't target them
- [https://vialligmbh.de/contact-p](https://vialligmbh.de/contact-p) — 5 button/link(s) with no text or aria-label — an agent can't target them
- [https://vialligmbh.de/dealers](https://vialligmbh.de/dealers) — 5 button/link(s) with no text or aria-label — an agent can't target them
- [https://vialligmbh.de/faqs](https://vialligmbh.de/faqs) — 5 button/link(s) with no text or aria-label — an agent can't target them
- [https://vialligmbh.de/gallery-p](https://vialligmbh.de/gallery-p) — 5 button/link(s) with no text or aria-label — an agent can't target them
- [https://vialligmbh.de/german/](https://vialligmbh.de/german/) — 5 button/link(s) with no text or aria-label — an agent can't target them
- [https://vialligmbh.de/german/about](https://vialligmbh.de/german/about) — 6 button/link(s) with no text or aria-label — an agent can't target them
- [https://vialligmbh.de/german/products-p?page=2](https://vialligmbh.de/german/products-p?page=2) — 25 button/link(s) with no text or aria-label — an agent can't target them
- [https://vialligmbh.de/german/products/pp-rc-single-layer-pipe-sdr6-pn20/p](https://vialligmbh.de/german/products/pp-rc-single-layer-pipe-sdr6-pn20/p) — 5 button/link(s) with no text or aria-label — an agent can't target them
- [https://vialligmbh.de/image-gallery](https://vialligmbh.de/image-gallery) — 5 button/link(s) with no text or aria-label — an agent can't target them
- [https://vialligmbh.de/products](https://vialligmbh.de/products) — 25 button/link(s) with no text or aria-label — an agent can't target them
- [https://vialligmbh.de/products-p](https://vialligmbh.de/products-p) — 25 button/link(s) with no text or aria-label — an agent can't target them
- [https://vialligmbh.de/products-p?page=2](https://vialligmbh.de/products-p?page=2) — 25 button/link(s) with no text or aria-label — an agent can't target them
- [https://vialligmbh.de/products?page=2](https://vialligmbh.de/products?page=2) — 25 button/link(s) with no text or aria-label — an agent can't target them
- [https://vialligmbh.de/solutions](https://vialligmbh.de/solutions) — 5 button/link(s) with no text or aria-label — an agent can't target them
- [https://vialligmbh.de/video-gallery](https://vialligmbh.de/video-gallery) — 5 button/link(s) with no text or aria-label — an agent can't target them

#### Missing canonical tag

- Rule: `canonical.missing` · Category: Canonical · Occurrences: 4

- [https://vialligmbh.de/german/](https://vialligmbh.de/german/)
- [https://vialligmbh.de/german/about](https://vialligmbh.de/german/about)
- [https://vialligmbh.de/german/products-p?page=2](https://vialligmbh.de/german/products-p?page=2)
- [https://vialligmbh.de/german/products/pp-rc-single-layer-pipe-sdr6-pn20/p](https://vialligmbh.de/german/products/pp-rc-single-layer-pipe-sdr6-pn20/p)

#### Thin content (low word count)

- Rule: `content.thin` · Category: Content · Occurrences: 14

- [https://vialligmbh.de/catalogue](https://vialligmbh.de/catalogue) — 67 words
- [https://vialligmbh.de/certificate](https://vialligmbh.de/certificate) — 62 words
- [https://vialligmbh.de/certificate/584](https://vialligmbh.de/certificate/584) — 51 words
- [https://vialligmbh.de/contact](https://vialligmbh.de/contact) — 80 words
- [https://vialligmbh.de/contact-p](https://vialligmbh.de/contact-p) — 96 words
- [https://vialligmbh.de/dealers](https://vialligmbh.de/dealers) — 63 words
- [https://vialligmbh.de/gallery-p](https://vialligmbh.de/gallery-p) — 59 words
- [https://vialligmbh.de/german/products-p?page=2](https://vialligmbh.de/german/products-p?page=2) — 164 words
- [https://vialligmbh.de/image-gallery](https://vialligmbh.de/image-gallery) — 59 words
- [https://vialligmbh.de/products](https://vialligmbh.de/products) — 139 words
- [https://vialligmbh.de/products-p](https://vialligmbh.de/products-p) — 163 words
- [https://vialligmbh.de/products-p?page=2](https://vialligmbh.de/products-p?page=2) — 172 words
- [https://vialligmbh.de/products?page=2](https://vialligmbh.de/products?page=2) — 148 words
- [https://vialligmbh.de/video-gallery](https://vialligmbh.de/video-gallery) — 49 words

#### Duplicate <title> across pages

- Rule: `duplicate.title` · Category: Duplicate · Occurrences: 9

- [https://vialligmbh.de/certificate/584](https://vialligmbh.de/certificate/584) — title shared by 3 pages: https://vialligmbh.de/products-p, https://vialligmbh.de/faqs
- [https://vialligmbh.de/contact](https://vialligmbh.de/contact) — title shared by 2 pages: https://vialligmbh.de/contact-p
- [https://vialligmbh.de/contact-p](https://vialligmbh.de/contact-p) — title shared by 2 pages: https://vialligmbh.de/contact
- [https://vialligmbh.de/faqs](https://vialligmbh.de/faqs) — title shared by 3 pages: https://vialligmbh.de/products-p, https://vialligmbh.de/certificate/584
- [https://vialligmbh.de/german/](https://vialligmbh.de/german/) — title shared by 4 pages: https://vialligmbh.de/german/about, https://vialligmbh.de/german/products/pp-rc-single-layer-pipe-sdr6-pn20/p, https://vialligmbh.de/german/products-p?page=2
- [https://vialligmbh.de/german/about](https://vialligmbh.de/german/about) — title shared by 4 pages: https://vialligmbh.de/german/, https://vialligmbh.de/german/products/pp-rc-single-layer-pipe-sdr6-pn20/p, https://vialligmbh.de/german/products-p?page=2
- [https://vialligmbh.de/german/products-p?page=2](https://vialligmbh.de/german/products-p?page=2) — title shared by 4 pages: https://vialligmbh.de/german/, https://vialligmbh.de/german/about, https://vialligmbh.de/german/products/pp-rc-single-layer-pipe-sdr6-pn20/p
- [https://vialligmbh.de/german/products/pp-rc-single-layer-pipe-sdr6-pn20/p](https://vialligmbh.de/german/products/pp-rc-single-layer-pipe-sdr6-pn20/p) — title shared by 4 pages: https://vialligmbh.de/german/, https://vialligmbh.de/german/about, https://vialligmbh.de/german/products-p?page=2
- [https://vialligmbh.de/products-p](https://vialligmbh.de/products-p) — title shared by 3 pages: https://vialligmbh.de/faqs, https://vialligmbh.de/certificate/584

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

- Rule: `fetch.incomplete` · Category: Crawlability · Occurrences: 2

- [https://vialligmbh.de/products/pp-rc-pipes](https://vialligmbh.de/products/pp-rc-pipes) — HTTP 500, 336 words after 3 attempts
- [https://vialligmbh.de/products/pp-rc-single-layer-pipe-sdr6-pn20/p](https://vialligmbh.de/products/pp-rc-single-layer-pipe-sdr6-pn20/p) — HTTP 500, 747 words after 3 attempts

#### Images missing alt text

- Rule: `images.missing_alt` · Category: Images · Occurrences: 21

- [https://vialligmbh.de/](https://vialligmbh.de/) — 8 of 17 images missing alt
- [https://vialligmbh.de/about](https://vialligmbh.de/about) — 15 of 18 images missing alt
- [https://vialligmbh.de/catalogue](https://vialligmbh.de/catalogue) — 5 of 10 images missing alt
- [https://vialligmbh.de/certificate](https://vialligmbh.de/certificate) — 5 of 12 images missing alt
- [https://vialligmbh.de/certificate/584](https://vialligmbh.de/certificate/584) — 5 of 8 images missing alt
- [https://vialligmbh.de/contact](https://vialligmbh.de/contact) — 5 of 7 images missing alt
- [https://vialligmbh.de/contact-p](https://vialligmbh.de/contact-p) — 5 of 7 images missing alt
- [https://vialligmbh.de/dealers](https://vialligmbh.de/dealers) — 5 of 7 images missing alt
- [https://vialligmbh.de/faqs](https://vialligmbh.de/faqs) — 5 of 7 images missing alt
- [https://vialligmbh.de/gallery-p](https://vialligmbh.de/gallery-p) — 5 of 55 images missing alt
- [https://vialligmbh.de/german/](https://vialligmbh.de/german/) — 8 of 17 images missing alt
- [https://vialligmbh.de/german/about](https://vialligmbh.de/german/about) — 15 of 18 images missing alt
- [https://vialligmbh.de/german/products-p?page=2](https://vialligmbh.de/german/products-p?page=2) — 22 of 27 images missing alt
- [https://vialligmbh.de/german/products/pp-rc-single-layer-pipe-sdr6-pn20/p](https://vialligmbh.de/german/products/pp-rc-single-layer-pipe-sdr6-pn20/p) — 5 of 9 images missing alt
- [https://vialligmbh.de/image-gallery](https://vialligmbh.de/image-gallery) — 5 of 55 images missing alt
- [https://vialligmbh.de/products](https://vialligmbh.de/products) — 23 of 25 images missing alt
- [https://vialligmbh.de/products-p](https://vialligmbh.de/products-p) — 23 of 28 images missing alt
- [https://vialligmbh.de/products-p?page=2](https://vialligmbh.de/products-p?page=2) — 22 of 27 images missing alt
- [https://vialligmbh.de/products?page=2](https://vialligmbh.de/products?page=2) — 22 of 24 images missing alt
- [https://vialligmbh.de/solutions](https://vialligmbh.de/solutions) — 13 of 15 images missing alt
- [https://vialligmbh.de/video-gallery](https://vialligmbh.de/video-gallery) — 5 of 7 images missing alt

### Notices (331)

#### Heading levels skip a level

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

- [https://vialligmbh.de/](https://vialligmbh.de/) — h4 follows h2 — skips h3
- [https://vialligmbh.de/about](https://vialligmbh.de/about) — h3 follows h1 — skips h2
- [https://vialligmbh.de/catalogue](https://vialligmbh.de/catalogue) — h3 follows h1 — skips h2
- [https://vialligmbh.de/certificate](https://vialligmbh.de/certificate) — h3 follows h1 — skips h2
- [https://vialligmbh.de/certificate/584](https://vialligmbh.de/certificate/584) — h3 follows h1 — skips h2
- [https://vialligmbh.de/contact](https://vialligmbh.de/contact) — h3 follows h1 — skips h2
- [https://vialligmbh.de/contact-p](https://vialligmbh.de/contact-p) — h3 follows h1 — skips h2
- [https://vialligmbh.de/dealers](https://vialligmbh.de/dealers) — h3 follows h1 — skips h2
- [https://vialligmbh.de/faqs](https://vialligmbh.de/faqs) — h4 follows h1 — skips h2
- [https://vialligmbh.de/gallery-p](https://vialligmbh.de/gallery-p) — h3 follows h1 — skips h2
- [https://vialligmbh.de/german/](https://vialligmbh.de/german/) — h4 follows h2 — skips h3
- [https://vialligmbh.de/german/about](https://vialligmbh.de/german/about) — h3 follows h1 — skips h2
- [https://vialligmbh.de/german/products/pp-rc-single-layer-pipe-sdr6-pn20/p](https://vialligmbh.de/german/products/pp-rc-single-layer-pipe-sdr6-pn20/p) — h4 follows h1 — skips h2
- [https://vialligmbh.de/image-gallery](https://vialligmbh.de/image-gallery) — h3 follows h1 — skips h2
- [https://vialligmbh.de/solutions](https://vialligmbh.de/solutions) — h4 follows h2 — skips h3
- [https://vialligmbh.de/video-gallery](https://vialligmbh.de/video-gallery) — h4 follows h1 — skips h2

#### No llms.txt for AI agents

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

- [https://vialligmbh.de/](https://vialligmbh.de/) — 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://vialligmbh.de/](https://vialligmbh.de/) — add a <main> element (or role=main) around the primary content
- [https://vialligmbh.de/about](https://vialligmbh.de/about) — add a <main> element (or role=main) around the primary content
- [https://vialligmbh.de/catalogue](https://vialligmbh.de/catalogue) — add a <main> element (or role=main) around the primary content
- [https://vialligmbh.de/certificate](https://vialligmbh.de/certificate) — add a <main> element (or role=main) around the primary content
- [https://vialligmbh.de/certificate/584](https://vialligmbh.de/certificate/584) — add a <main> element (or role=main) around the primary content
- [https://vialligmbh.de/contact](https://vialligmbh.de/contact) — add a <main> element (or role=main) around the primary content
- [https://vialligmbh.de/contact-p](https://vialligmbh.de/contact-p) — add a <main> element (or role=main) around the primary content
- [https://vialligmbh.de/dealers](https://vialligmbh.de/dealers) — add a <main> element (or role=main) around the primary content
- [https://vialligmbh.de/faqs](https://vialligmbh.de/faqs) — add a <main> element (or role=main) around the primary content
- [https://vialligmbh.de/gallery-p](https://vialligmbh.de/gallery-p) — add a <main> element (or role=main) around the primary content
- [https://vialligmbh.de/german/](https://vialligmbh.de/german/) — add a <main> element (or role=main) around the primary content
- [https://vialligmbh.de/german/about](https://vialligmbh.de/german/about) — add a <main> element (or role=main) around the primary content
- [https://vialligmbh.de/german/products/pp-rc-single-layer-pipe-sdr6-pn20/p](https://vialligmbh.de/german/products/pp-rc-single-layer-pipe-sdr6-pn20/p) — add a <main> element (or role=main) around the primary content
- [https://vialligmbh.de/image-gallery](https://vialligmbh.de/image-gallery) — add a <main> element (or role=main) around the primary content

#### Page served uncached (no-store/private or CDN bypass)

- Rule: `cache.not_cacheable` · Category: Cache · Occurrences: 21

- [https://vialligmbh.de/](https://vialligmbh.de/) — Cache-Control: no-store, no-cache, must-revalidate, no-cache
- [https://vialligmbh.de/about](https://vialligmbh.de/about) — Cache-Control: no-store, no-cache, must-revalidate, no-cache
- [https://vialligmbh.de/catalogue](https://vialligmbh.de/catalogue) — Cache-Control: no-store, no-cache, must-revalidate, no-cache
- [https://vialligmbh.de/certificate](https://vialligmbh.de/certificate) — Cache-Control: no-store, no-cache, must-revalidate, no-cache
- [https://vialligmbh.de/certificate/584](https://vialligmbh.de/certificate/584) — Cache-Control: no-store, no-cache, must-revalidate, no-cache
- [https://vialligmbh.de/contact](https://vialligmbh.de/contact) — Cache-Control: no-store, no-cache, must-revalidate, no-cache
- [https://vialligmbh.de/contact-p](https://vialligmbh.de/contact-p) — Cache-Control: no-store, no-cache, must-revalidate, no-cache
- [https://vialligmbh.de/dealers](https://vialligmbh.de/dealers) — Cache-Control: no-store, no-cache, must-revalidate, no-cache
- [https://vialligmbh.de/faqs](https://vialligmbh.de/faqs) — Cache-Control: no-store, no-cache, must-revalidate, no-cache
- [https://vialligmbh.de/gallery-p](https://vialligmbh.de/gallery-p) — Cache-Control: no-store, no-cache, must-revalidate, no-cache
- [https://vialligmbh.de/german/](https://vialligmbh.de/german/) — Cache-Control: no-store, no-cache, must-revalidate, no-cache
- [https://vialligmbh.de/german/about](https://vialligmbh.de/german/about) — Cache-Control: no-store, no-cache, must-revalidate, no-cache
- [https://vialligmbh.de/german/products-p?page=2](https://vialligmbh.de/german/products-p?page=2) — Cache-Control: no-store, no-cache, must-revalidate, no-cache
- [https://vialligmbh.de/german/products/pp-rc-single-layer-pipe-sdr6-pn20/p](https://vialligmbh.de/german/products/pp-rc-single-layer-pipe-sdr6-pn20/p) — Cache-Control: no-store, no-cache, must-revalidate, no-cache
- [https://vialligmbh.de/image-gallery](https://vialligmbh.de/image-gallery) — Cache-Control: no-store, no-cache, must-revalidate, no-cache
- [https://vialligmbh.de/products](https://vialligmbh.de/products) — Cache-Control: no-store, no-cache, must-revalidate, no-cache
- [https://vialligmbh.de/products-p](https://vialligmbh.de/products-p) — Cache-Control: no-store, no-cache, must-revalidate, no-cache
- [https://vialligmbh.de/products-p?page=2](https://vialligmbh.de/products-p?page=2) — Cache-Control: no-store, no-cache, must-revalidate, no-cache
- [https://vialligmbh.de/products?page=2](https://vialligmbh.de/products?page=2) — Cache-Control: no-store, no-cache, must-revalidate, no-cache
- [https://vialligmbh.de/solutions](https://vialligmbh.de/solutions) — Cache-Control: no-store, no-cache, must-revalidate, no-cache
- [https://vialligmbh.de/video-gallery](https://vialligmbh.de/video-gallery) — Cache-Control: no-store, no-cache, must-revalidate, no-cache

#### Low text-to-HTML ratio

- Rule: `content.low_ratio` · Category: Content · Occurrences: 7

- [https://vialligmbh.de/catalogue](https://vialligmbh.de/catalogue) — 4.4%
- [https://vialligmbh.de/certificate](https://vialligmbh.de/certificate) — 4.1%
- [https://vialligmbh.de/certificate/584](https://vialligmbh.de/certificate/584) — 3.9%
- [https://vialligmbh.de/dealers](https://vialligmbh.de/dealers) — 4.8%
- [https://vialligmbh.de/gallery-p](https://vialligmbh.de/gallery-p) — 4.1%
- [https://vialligmbh.de/image-gallery](https://vialligmbh.de/image-gallery) — 2.0%
- [https://vialligmbh.de/video-gallery](https://vialligmbh.de/video-gallery) — 3.8%

#### Main text is hard to read (low Flesch Reading Ease)

- Rule: `content.readability_poor` · Category: Content · Occurrences: 11

- [https://vialligmbh.de/](https://vialligmbh.de/) — this page reads as very difficult (Flesch Reading Ease 22, below 50) — long sentences and multi-syllable words make it hard to scan. Shorten sentences and prefer plainer words to widen your audience. Density can be legitimate for expert, technical or legal content, so judge it against who the page is for.
- [https://vialligmbh.de/about](https://vialligmbh.de/about) — this page reads as very difficult (Flesch Reading Ease 20, below 50) — long sentences and multi-syllable words make it hard to scan. Shorten sentences and prefer plainer words to widen your audience. Density can be legitimate for expert, technical or legal content, so judge it against who the page is for.
- [https://vialligmbh.de/faqs](https://vialligmbh.de/faqs) — this page reads as difficult (Flesch Reading Ease 44, below 50) — long sentences and multi-syllable words make it hard to scan. Shorten sentences and prefer plainer words to widen your audience. Density can be legitimate for expert, technical or legal content, so judge it against who the page is for.
- [https://vialligmbh.de/german/](https://vialligmbh.de/german/) — this page reads as very difficult (Flesch Reading Ease 6, below 50) — long sentences and multi-syllable words make it hard to scan. Shorten sentences and prefer plainer words to widen your audience. Density can be legitimate for expert, technical or legal content, so judge it against who the page is for.
- [https://vialligmbh.de/german/about](https://vialligmbh.de/german/about) — this page reads as very difficult (Flesch Reading Ease 13, below 50) — long sentences and multi-syllable words make it hard to scan. Shorten sentences and prefer plainer words to widen your audience. Density can be legitimate for expert, technical or legal content, so judge it against who the page is for.
- [https://vialligmbh.de/german/products-p?page=2](https://vialligmbh.de/german/products-p?page=2) — this page reads as very difficult (Flesch Reading Ease 9, below 50) — long sentences and multi-syllable words make it hard to scan. Shorten sentences and prefer plainer words to widen your audience. Density can be legitimate for expert, technical or legal content, so judge it against who the page is for.
- [https://vialligmbh.de/products](https://vialligmbh.de/products) — this page reads as very difficult (Flesch Reading Ease 22, below 50) — long sentences and multi-syllable words make it hard to scan. Shorten sentences and prefer plainer words to widen your audience. Density can be legitimate for expert, technical or legal content, so judge it against who the page is for.
- [https://vialligmbh.de/products-p](https://vialligmbh.de/products-p) — this page reads as very difficult (Flesch Reading Ease 16, below 50) — long sentences and multi-syllable words make it hard to scan. Shorten sentences and prefer plainer words to widen your audience. Density can be legitimate for expert, technical or legal content, so judge it against who the page is for.
- [https://vialligmbh.de/products-p?page=2](https://vialligmbh.de/products-p?page=2) — this page reads as very difficult (Flesch Reading Ease 12, below 50) — long sentences and multi-syllable words make it hard to scan. Shorten sentences and prefer plainer words to widen your audience. Density can be legitimate for expert, technical or legal content, so judge it against who the page is for.
- [https://vialligmbh.de/products?page=2](https://vialligmbh.de/products?page=2) — this page reads as very difficult (Flesch Reading Ease 17, below 50) — long sentences and multi-syllable words make it hard to scan. Shorten sentences and prefer plainer words to widen your audience. Density can be legitimate for expert, technical or legal content, so judge it against who the page is for.
- [https://vialligmbh.de/solutions](https://vialligmbh.de/solutions) — this page reads as very difficult (Flesch Reading Ease 26, below 50) — long sentences and multi-syllable words make it hard to scan. Shorten sentences and prefer plainer words to widen your audience. Density can be legitimate for expert, technical or legal content, so judge it against who the page is for.

#### Title tag and meta description are identical

- Rule: `content.title_meta_same` · Category: Meta Description · Occurrences: 8

- [https://vialligmbh.de/certificate/584](https://vialligmbh.de/certificate/584) — the meta description is identical to the <title> — write a distinct description to control the SERP snippet
- [https://vialligmbh.de/faqs](https://vialligmbh.de/faqs) — the meta description is identical to the <title> — write a distinct description to control the SERP snippet
- [https://vialligmbh.de/german/](https://vialligmbh.de/german/) — the meta description is identical to the <title> — write a distinct description to control the SERP snippet
- [https://vialligmbh.de/german/about](https://vialligmbh.de/german/about) — the meta description is identical to the <title> — write a distinct description to control the SERP snippet
- [https://vialligmbh.de/german/products-p?page=2](https://vialligmbh.de/german/products-p?page=2) — the meta description is identical to the <title> — write a distinct description to control the SERP snippet
- [https://vialligmbh.de/german/products/pp-rc-single-layer-pipe-sdr6-pn20/p](https://vialligmbh.de/german/products/pp-rc-single-layer-pipe-sdr6-pn20/p) — the meta description is identical to the <title> — write a distinct description to control the SERP snippet
- [https://vialligmbh.de/products-p](https://vialligmbh.de/products-p) — the meta description is identical to the <title> — write a distinct description to control the SERP snippet
- [https://vialligmbh.de/products-p?page=2](https://vialligmbh.de/products-p?page=2) — the meta description is identical to the <title> — write a distinct description to control the SERP snippet

#### Duplicate meta description across pages

- Rule: `duplicate.meta_desc` · Category: Duplicate · Occurrences: 9

- [https://vialligmbh.de/certificate/584](https://vialligmbh.de/certificate/584) — meta description shared by 3 pages: https://vialligmbh.de/products-p, https://vialligmbh.de/faqs
- [https://vialligmbh.de/contact](https://vialligmbh.de/contact) — meta description shared by 2 pages: https://vialligmbh.de/contact-p
- [https://vialligmbh.de/contact-p](https://vialligmbh.de/contact-p) — meta description shared by 2 pages: https://vialligmbh.de/contact
- [https://vialligmbh.de/faqs](https://vialligmbh.de/faqs) — meta description shared by 3 pages: https://vialligmbh.de/products-p, https://vialligmbh.de/certificate/584
- [https://vialligmbh.de/german/](https://vialligmbh.de/german/) — meta description shared by 4 pages: https://vialligmbh.de/german/about, https://vialligmbh.de/german/products/pp-rc-single-layer-pipe-sdr6-pn20/p, https://vialligmbh.de/german/products-p?page=2
- [https://vialligmbh.de/german/about](https://vialligmbh.de/german/about) — meta description shared by 4 pages: https://vialligmbh.de/german/, https://vialligmbh.de/german/products/pp-rc-single-layer-pipe-sdr6-pn20/p, https://vialligmbh.de/german/products-p?page=2
- [https://vialligmbh.de/german/products-p?page=2](https://vialligmbh.de/german/products-p?page=2) — meta description shared by 4 pages: https://vialligmbh.de/german/, https://vialligmbh.de/german/about, https://vialligmbh.de/german/products/pp-rc-single-layer-pipe-sdr6-pn20/p
- [https://vialligmbh.de/german/products/pp-rc-single-layer-pipe-sdr6-pn20/p](https://vialligmbh.de/german/products/pp-rc-single-layer-pipe-sdr6-pn20/p) — meta description shared by 4 pages: https://vialligmbh.de/german/, https://vialligmbh.de/german/about, https://vialligmbh.de/german/products-p?page=2
- [https://vialligmbh.de/products-p](https://vialligmbh.de/products-p) — meta description shared by 3 pages: https://vialligmbh.de/faqs, https://vialligmbh.de/certificate/584

#### Missing <!DOCTYPE html> (quirks-mode rendering risk)

- Rule: `encoding.doctype_missing` · Category: Content · Occurrences: 2

- [https://vialligmbh.de/contact](https://vialligmbh.de/contact) — no <!DOCTYPE html> in the response — add it to avoid quirks-mode rendering differences
- [https://vialligmbh.de/contact-p](https://vialligmbh.de/contact-p) — no <!DOCTYPE html> in the response — add it to avoid quirks-mode rendering differences

#### Multiple <h1> elements

- Rule: `h1.multiple` · Category: Headings · Occurrences: 4

- [https://vialligmbh.de/](https://vialligmbh.de/) — 5 <h1> elements
- [https://vialligmbh.de/faqs](https://vialligmbh.de/faqs) — 3 <h1> elements
- [https://vialligmbh.de/german/](https://vialligmbh.de/german/) — 5 <h1> elements
- [https://vialligmbh.de/german/products/pp-rc-single-layer-pipe-sdr6-pn20/p](https://vialligmbh.de/german/products/pp-rc-single-layer-pipe-sdr6-pn20/p) — 2 <h1> elements

#### Likely hero image lacks fetchpriority=high

- Rule: `images.hero_no_fetchpriority` · Category: Performance · Occurrences: 16

- [https://vialligmbh.de/](https://vialligmbh.de/) — the likely hero/LCP image (1705477261hhh05386.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://vialligmbh.de/about](https://vialligmbh.de/about) — the likely hero/LCP image (1706624565viallli factory video thumbnail.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://vialligmbh.de/catalogue](https://vialligmbh.de/catalogue) — the likely hero/LCP image (1737621035ppr product catalogue cover page_page-0001.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://vialligmbh.de/certificate](https://vialligmbh.de/certificate) — the likely hero/LCP image (170609331917049767161700804486griffon-dvgw.jpeg) 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://vialligmbh.de/certificate/584](https://vialligmbh.de/certificate/584) — the likely hero/LCP image (1738842687vialli gmbh dvgw certificate_page-0001.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://vialligmbh.de/gallery-p](https://vialligmbh.de/gallery-p) — the likely hero/LCP image (17056612973.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://vialligmbh.de/german/](https://vialligmbh.de/german/) — the likely hero/LCP image (1705477153hhh05386.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://vialligmbh.de/german/about](https://vialligmbh.de/german/about) — the likely hero/LCP image (1706624579viallli factory video thumbnail.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://vialligmbh.de/german/products-p?page=2](https://vialligmbh.de/german/products-p?page=2) — the likely hero/LCP image (1708003007female elbow.jpeg) 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://vialligmbh.de/german/products/pp-rc-single-layer-pipe-sdr6-pn20/p](https://vialligmbh.de/german/products/pp-rc-single-layer-pipe-sdr6-pn20/p) — the likely hero/LCP image (17065044131.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://vialligmbh.de/image-gallery](https://vialligmbh.de/image-gallery) — the likely hero/LCP image (17056612973.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://vialligmbh.de/products](https://vialligmbh.de/products) — the likely hero/LCP image (1732627233pex a pipes.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://vialligmbh.de/products-p](https://vialligmbh.de/products-p) — the likely hero/LCP image (1732627233pex a pipes.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://vialligmbh.de/products-p?page=2](https://vialligmbh.de/products-p?page=2) — the likely hero/LCP image (17063473969.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://vialligmbh.de/products?page=2](https://vialligmbh.de/products?page=2) — the likely hero/LCP image (17063473969.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://vialligmbh.de/solutions](https://vialligmbh.de/solutions) — the likely hero/LCP image (1705582154capture vi.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.

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

- Rule: `images.missing_dimensions` · Category: Images · Occurrences: 21

- [https://vialligmbh.de/](https://vialligmbh.de/) — 17 of 17 images without width/height
- [https://vialligmbh.de/about](https://vialligmbh.de/about) — 18 of 18 images without width/height
- [https://vialligmbh.de/catalogue](https://vialligmbh.de/catalogue) — 10 of 10 images without width/height
- [https://vialligmbh.de/certificate](https://vialligmbh.de/certificate) — 12 of 12 images without width/height
- [https://vialligmbh.de/certificate/584](https://vialligmbh.de/certificate/584) — 8 of 8 images without width/height
- [https://vialligmbh.de/contact](https://vialligmbh.de/contact) — 7 of 7 images without width/height
- [https://vialligmbh.de/contact-p](https://vialligmbh.de/contact-p) — 7 of 7 images without width/height
- [https://vialligmbh.de/dealers](https://vialligmbh.de/dealers) — 7 of 7 images without width/height
- [https://vialligmbh.de/faqs](https://vialligmbh.de/faqs) — 7 of 7 images without width/height
- [https://vialligmbh.de/gallery-p](https://vialligmbh.de/gallery-p) — 7 of 55 images without width/height
- [https://vialligmbh.de/german/](https://vialligmbh.de/german/) — 17 of 17 images without width/height
- [https://vialligmbh.de/german/about](https://vialligmbh.de/german/about) — 18 of 18 images without width/height
- [https://vialligmbh.de/german/products-p?page=2](https://vialligmbh.de/german/products-p?page=2) — 27 of 27 images without width/height
- [https://vialligmbh.de/german/products/pp-rc-single-layer-pipe-sdr6-pn20/p](https://vialligmbh.de/german/products/pp-rc-single-layer-pipe-sdr6-pn20/p) — 7 of 9 images without width/height
- [https://vialligmbh.de/image-gallery](https://vialligmbh.de/image-gallery) — 55 of 55 images without width/height
- [https://vialligmbh.de/products](https://vialligmbh.de/products) — 25 of 25 images without width/height
- [https://vialligmbh.de/products-p](https://vialligmbh.de/products-p) — 28 of 28 images without width/height
- [https://vialligmbh.de/products-p?page=2](https://vialligmbh.de/products-p?page=2) — 27 of 27 images without width/height
- [https://vialligmbh.de/products?page=2](https://vialligmbh.de/products?page=2) — 24 of 24 images without width/height
- [https://vialligmbh.de/solutions](https://vialligmbh.de/solutions) — 15 of 15 images without width/height
- [https://vialligmbh.de/video-gallery](https://vialligmbh.de/video-gallery) — 7 of 7 images without width/height

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

- Rule: `links.no_anchor_text` · Category: Links · Occurrences: 21

- [https://vialligmbh.de/](https://vialligmbh.de/) — 4 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://vialligmbh.de/about](https://vialligmbh.de/about) — 4 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://vialligmbh.de/catalogue](https://vialligmbh.de/catalogue) — 4 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://vialligmbh.de/certificate](https://vialligmbh.de/certificate) — 4 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://vialligmbh.de/certificate/584](https://vialligmbh.de/certificate/584) — 4 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://vialligmbh.de/contact](https://vialligmbh.de/contact) — 4 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://vialligmbh.de/contact-p](https://vialligmbh.de/contact-p) — 4 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://vialligmbh.de/dealers](https://vialligmbh.de/dealers) — 4 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://vialligmbh.de/faqs](https://vialligmbh.de/faqs) — 4 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://vialligmbh.de/gallery-p](https://vialligmbh.de/gallery-p) — 4 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://vialligmbh.de/german/](https://vialligmbh.de/german/) — 4 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://vialligmbh.de/german/about](https://vialligmbh.de/german/about) — 4 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://vialligmbh.de/german/products-p?page=2](https://vialligmbh.de/german/products-p?page=2) — 24 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://vialligmbh.de/german/products/pp-rc-single-layer-pipe-sdr6-pn20/p](https://vialligmbh.de/german/products/pp-rc-single-layer-pipe-sdr6-pn20/p) — 4 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://vialligmbh.de/image-gallery](https://vialligmbh.de/image-gallery) — 4 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://vialligmbh.de/products](https://vialligmbh.de/products) — 24 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://vialligmbh.de/products-p](https://vialligmbh.de/products-p) — 24 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://vialligmbh.de/products-p?page=2](https://vialligmbh.de/products-p?page=2) — 24 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://vialligmbh.de/products?page=2](https://vialligmbh.de/products?page=2) — 24 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://vialligmbh.de/solutions](https://vialligmbh.de/solutions) — 4 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://vialligmbh.de/video-gallery](https://vialligmbh.de/video-gallery) — 4 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.

#### Legacy <meta name=keywords> tag present (Google ignores it)

- Rule: `meta.keywords_present` · Category: Content · Occurrences: 17

- [https://vialligmbh.de/](https://vialligmbh.de/) — a <meta name="keywords"> tag is present — Google has ignored it since 2009; remove it to cut template debt
- [https://vialligmbh.de/about](https://vialligmbh.de/about) — a <meta name="keywords"> tag is present — Google has ignored it since 2009; remove it to cut template debt
- [https://vialligmbh.de/catalogue](https://vialligmbh.de/catalogue) — a <meta name="keywords"> tag is present — Google has ignored it since 2009; remove it to cut template debt
- [https://vialligmbh.de/certificate](https://vialligmbh.de/certificate) — a <meta name="keywords"> tag is present — Google has ignored it since 2009; remove it to cut template debt
- [https://vialligmbh.de/certificate/584](https://vialligmbh.de/certificate/584) — a <meta name="keywords"> tag is present — Google has ignored it since 2009; remove it to cut template debt
- [https://vialligmbh.de/contact](https://vialligmbh.de/contact) — a <meta name="keywords"> tag is present — Google has ignored it since 2009; remove it to cut template debt
- [https://vialligmbh.de/contact-p](https://vialligmbh.de/contact-p) — a <meta name="keywords"> tag is present — Google has ignored it since 2009; remove it to cut template debt
- [https://vialligmbh.de/dealers](https://vialligmbh.de/dealers) — a <meta name="keywords"> tag is present — Google has ignored it since 2009; remove it to cut template debt
- [https://vialligmbh.de/faqs](https://vialligmbh.de/faqs) — a <meta name="keywords"> tag is present — Google has ignored it since 2009; remove it to cut template debt
- [https://vialligmbh.de/gallery-p](https://vialligmbh.de/gallery-p) — a <meta name="keywords"> tag is present — Google has ignored it since 2009; remove it to cut template debt
- [https://vialligmbh.de/image-gallery](https://vialligmbh.de/image-gallery) — a <meta name="keywords"> tag is present — Google has ignored it since 2009; remove it to cut template debt
- [https://vialligmbh.de/products](https://vialligmbh.de/products) — a <meta name="keywords"> tag is present — Google has ignored it since 2009; remove it to cut template debt
- [https://vialligmbh.de/products-p](https://vialligmbh.de/products-p) — a <meta name="keywords"> tag is present — Google has ignored it since 2009; remove it to cut template debt
- [https://vialligmbh.de/products-p?page=2](https://vialligmbh.de/products-p?page=2) — a <meta name="keywords"> tag is present — Google has ignored it since 2009; remove it to cut template debt
- [https://vialligmbh.de/products?page=2](https://vialligmbh.de/products?page=2) — a <meta name="keywords"> tag is present — Google has ignored it since 2009; remove it to cut template debt
- [https://vialligmbh.de/solutions](https://vialligmbh.de/solutions) — a <meta name="keywords"> tag is present — Google has ignored it since 2009; remove it to cut template debt
- [https://vialligmbh.de/video-gallery](https://vialligmbh.de/video-gallery) — a <meta name="keywords"> tag is present — Google has ignored it since 2009; remove it to cut template debt

#### Meta description too short

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

- [https://vialligmbh.de/contact](https://vialligmbh.de/contact) — 12 chars
- [https://vialligmbh.de/contact-p](https://vialligmbh.de/contact-p) — 12 chars
- [https://vialligmbh.de/dealers](https://vialligmbh.de/dealers) — 9 chars
- [https://vialligmbh.de/gallery-p](https://vialligmbh.de/gallery-p) — 14 chars
- [https://vialligmbh.de/image-gallery](https://vialligmbh.de/image-gallery) — 15 chars
- [https://vialligmbh.de/video-gallery](https://vialligmbh.de/video-gallery) — 15 chars

#### Missing Open Graph tags

- Rule: `og.missing` · Category: Social · Occurrences: 21

- [https://vialligmbh.de/](https://vialligmbh.de/) — og:title, og:description, og:image
- [https://vialligmbh.de/about](https://vialligmbh.de/about) — og:title, og:description, og:image
- [https://vialligmbh.de/catalogue](https://vialligmbh.de/catalogue) — og:title, og:description, og:image
- [https://vialligmbh.de/certificate](https://vialligmbh.de/certificate) — og:title, og:description, og:image
- [https://vialligmbh.de/certificate/584](https://vialligmbh.de/certificate/584) — og:title, og:description, og:image
- [https://vialligmbh.de/contact](https://vialligmbh.de/contact) — og:title, og:description, og:image
- [https://vialligmbh.de/contact-p](https://vialligmbh.de/contact-p) — og:title, og:description, og:image
- [https://vialligmbh.de/dealers](https://vialligmbh.de/dealers) — og:title, og:description, og:image
- [https://vialligmbh.de/faqs](https://vialligmbh.de/faqs) — og:title, og:description, og:image
- [https://vialligmbh.de/gallery-p](https://vialligmbh.de/gallery-p) — og:title, og:description, og:image
- [https://vialligmbh.de/german/](https://vialligmbh.de/german/) — og:title, og:description, og:image
- [https://vialligmbh.de/german/about](https://vialligmbh.de/german/about) — og:title, og:description, og:image
- [https://vialligmbh.de/german/products-p?page=2](https://vialligmbh.de/german/products-p?page=2) — og:title, og:description, og:image
- [https://vialligmbh.de/german/products/pp-rc-single-layer-pipe-sdr6-pn20/p](https://vialligmbh.de/german/products/pp-rc-single-layer-pipe-sdr6-pn20/p) — og:title, og:description, og:image
- [https://vialligmbh.de/image-gallery](https://vialligmbh.de/image-gallery) — og:title, og:description, og:image
- [https://vialligmbh.de/products](https://vialligmbh.de/products) — og:title, og:description, og:image
- [https://vialligmbh.de/products-p](https://vialligmbh.de/products-p) — og:title, og:description, og:image
- [https://vialligmbh.de/products-p?page=2](https://vialligmbh.de/products-p?page=2) — og:title, og:description, og:image
- [https://vialligmbh.de/products?page=2](https://vialligmbh.de/products?page=2) — og:title, og:description, og:image
- [https://vialligmbh.de/solutions](https://vialligmbh.de/solutions) — og:title, og:description, og:image
- [https://vialligmbh.de/video-gallery](https://vialligmbh.de/video-gallery) — og:title, og:description, og:image

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

- Rule: `perf.images_legacy_format` · Category: Performance · Occurrences: 21

- [https://vialligmbh.de/](https://vialligmbh.de/) — 15 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://vialligmbh.de/about](https://vialligmbh.de/about) — 18 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://vialligmbh.de/catalogue](https://vialligmbh.de/catalogue) — 10 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://vialligmbh.de/certificate](https://vialligmbh.de/certificate) — 12 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://vialligmbh.de/certificate/584](https://vialligmbh.de/certificate/584) — 8 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://vialligmbh.de/contact](https://vialligmbh.de/contact) — 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://vialligmbh.de/contact-p](https://vialligmbh.de/contact-p) — 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://vialligmbh.de/dealers](https://vialligmbh.de/dealers) — 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://vialligmbh.de/faqs](https://vialligmbh.de/faqs) — 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://vialligmbh.de/gallery-p](https://vialligmbh.de/gallery-p) — 55 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://vialligmbh.de/german/](https://vialligmbh.de/german/) — 15 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://vialligmbh.de/german/about](https://vialligmbh.de/german/about) — 18 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://vialligmbh.de/german/products-p?page=2](https://vialligmbh.de/german/products-p?page=2) — 27 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://vialligmbh.de/german/products/pp-rc-single-layer-pipe-sdr6-pn20/p](https://vialligmbh.de/german/products/pp-rc-single-layer-pipe-sdr6-pn20/p) — 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://vialligmbh.de/image-gallery](https://vialligmbh.de/image-gallery) — 55 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://vialligmbh.de/products](https://vialligmbh.de/products) — 25 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://vialligmbh.de/products-p](https://vialligmbh.de/products-p) — 28 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://vialligmbh.de/products-p?page=2](https://vialligmbh.de/products-p?page=2) — 27 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://vialligmbh.de/products?page=2](https://vialligmbh.de/products?page=2) — 24 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://vialligmbh.de/solutions](https://vialligmbh.de/solutions) — 15 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://vialligmbh.de/video-gallery](https://vialligmbh.de/video-gallery) — 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.

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

- Rule: `perf.no_etag` · Category: Performance · Occurrences: 21

- [https://vialligmbh.de/](https://vialligmbh.de/) — 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://vialligmbh.de/about](https://vialligmbh.de/about) — 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://vialligmbh.de/catalogue](https://vialligmbh.de/catalogue) — 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://vialligmbh.de/certificate](https://vialligmbh.de/certificate) — 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://vialligmbh.de/certificate/584](https://vialligmbh.de/certificate/584) — 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://vialligmbh.de/contact](https://vialligmbh.de/contact) — 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://vialligmbh.de/contact-p](https://vialligmbh.de/contact-p) — 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://vialligmbh.de/dealers](https://vialligmbh.de/dealers) — 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://vialligmbh.de/faqs](https://vialligmbh.de/faqs) — 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://vialligmbh.de/gallery-p](https://vialligmbh.de/gallery-p) — 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://vialligmbh.de/german/](https://vialligmbh.de/german/) — 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://vialligmbh.de/german/about](https://vialligmbh.de/german/about) — 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://vialligmbh.de/german/products-p?page=2](https://vialligmbh.de/german/products-p?page=2) — 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://vialligmbh.de/german/products/pp-rc-single-layer-pipe-sdr6-pn20/p](https://vialligmbh.de/german/products/pp-rc-single-layer-pipe-sdr6-pn20/p) — 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://vialligmbh.de/image-gallery](https://vialligmbh.de/image-gallery) — 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://vialligmbh.de/products](https://vialligmbh.de/products) — 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://vialligmbh.de/products-p](https://vialligmbh.de/products-p) — 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://vialligmbh.de/products-p?page=2](https://vialligmbh.de/products-p?page=2) — 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://vialligmbh.de/products?page=2](https://vialligmbh.de/products?page=2) — 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://vialligmbh.de/solutions](https://vialligmbh.de/solutions) — 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://vialligmbh.de/video-gallery](https://vialligmbh.de/video-gallery) — 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: 21

- [https://vialligmbh.de/](https://vialligmbh.de/) — 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://vialligmbh.de/about](https://vialligmbh.de/about) — 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://vialligmbh.de/catalogue](https://vialligmbh.de/catalogue) — 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://vialligmbh.de/certificate](https://vialligmbh.de/certificate) — 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://vialligmbh.de/certificate/584](https://vialligmbh.de/certificate/584) — 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://vialligmbh.de/contact](https://vialligmbh.de/contact) — 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://vialligmbh.de/contact-p](https://vialligmbh.de/contact-p) — 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://vialligmbh.de/dealers](https://vialligmbh.de/dealers) — 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://vialligmbh.de/faqs](https://vialligmbh.de/faqs) — 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://vialligmbh.de/gallery-p](https://vialligmbh.de/gallery-p) — 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://vialligmbh.de/german/](https://vialligmbh.de/german/) — 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://vialligmbh.de/german/about](https://vialligmbh.de/german/about) — 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://vialligmbh.de/german/products-p?page=2](https://vialligmbh.de/german/products-p?page=2) — 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://vialligmbh.de/german/products/pp-rc-single-layer-pipe-sdr6-pn20/p](https://vialligmbh.de/german/products/pp-rc-single-layer-pipe-sdr6-pn20/p) — 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://vialligmbh.de/image-gallery](https://vialligmbh.de/image-gallery) — 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://vialligmbh.de/products](https://vialligmbh.de/products) — 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://vialligmbh.de/products-p](https://vialligmbh.de/products-p) — 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://vialligmbh.de/products-p?page=2](https://vialligmbh.de/products-p?page=2) — 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://vialligmbh.de/products?page=2](https://vialligmbh.de/products?page=2) — 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://vialligmbh.de/solutions](https://vialligmbh.de/solutions) — 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://vialligmbh.de/video-gallery](https://vialligmbh.de/video-gallery) — 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.

#### No structured data detected

- Rule: `schema.none` · Category: Structured Data · Occurrences: 21

- [https://vialligmbh.de/](https://vialligmbh.de/)
- [https://vialligmbh.de/about](https://vialligmbh.de/about)
- [https://vialligmbh.de/catalogue](https://vialligmbh.de/catalogue)
- [https://vialligmbh.de/certificate](https://vialligmbh.de/certificate)
- [https://vialligmbh.de/certificate/584](https://vialligmbh.de/certificate/584)
- [https://vialligmbh.de/contact](https://vialligmbh.de/contact)
- [https://vialligmbh.de/contact-p](https://vialligmbh.de/contact-p)
- [https://vialligmbh.de/dealers](https://vialligmbh.de/dealers)
- [https://vialligmbh.de/faqs](https://vialligmbh.de/faqs)
- [https://vialligmbh.de/gallery-p](https://vialligmbh.de/gallery-p)
- [https://vialligmbh.de/german/](https://vialligmbh.de/german/)
- [https://vialligmbh.de/german/about](https://vialligmbh.de/german/about)
- [https://vialligmbh.de/german/products-p?page=2](https://vialligmbh.de/german/products-p?page=2)
- [https://vialligmbh.de/german/products/pp-rc-single-layer-pipe-sdr6-pn20/p](https://vialligmbh.de/german/products/pp-rc-single-layer-pipe-sdr6-pn20/p)
- [https://vialligmbh.de/image-gallery](https://vialligmbh.de/image-gallery)
- [https://vialligmbh.de/products](https://vialligmbh.de/products)
- [https://vialligmbh.de/products-p](https://vialligmbh.de/products-p)
- [https://vialligmbh.de/products-p?page=2](https://vialligmbh.de/products-p?page=2)
- [https://vialligmbh.de/products?page=2](https://vialligmbh.de/products?page=2)
- [https://vialligmbh.de/solutions](https://vialligmbh.de/solutions)
- [https://vialligmbh.de/video-gallery](https://vialligmbh.de/video-gallery)

#### Missing recommended security headers

- Rule: `security.missing_headers` · Category: Security · Occurrences: 23

- [https://vialligmbh.de/](https://vialligmbh.de/) — HSTS, CSP, X-Content-Type-Options
- [https://vialligmbh.de/about](https://vialligmbh.de/about) — HSTS, CSP, X-Content-Type-Options
- [https://vialligmbh.de/catalogue](https://vialligmbh.de/catalogue) — HSTS, CSP, X-Content-Type-Options
- [https://vialligmbh.de/certificate](https://vialligmbh.de/certificate) — X-Content-Type-Options, HSTS, CSP
- [https://vialligmbh.de/certificate/584](https://vialligmbh.de/certificate/584) — HSTS, CSP, X-Content-Type-Options
- [https://vialligmbh.de/contact](https://vialligmbh.de/contact) — X-Content-Type-Options, HSTS, CSP
- [https://vialligmbh.de/contact-p](https://vialligmbh.de/contact-p) — HSTS, CSP, X-Content-Type-Options
- [https://vialligmbh.de/dealers](https://vialligmbh.de/dealers) — CSP, X-Content-Type-Options, HSTS
- [https://vialligmbh.de/faqs](https://vialligmbh.de/faqs) — HSTS, CSP, X-Content-Type-Options
- [https://vialligmbh.de/gallery-p](https://vialligmbh.de/gallery-p) — HSTS, CSP, X-Content-Type-Options
- [https://vialligmbh.de/german/](https://vialligmbh.de/german/) — HSTS, CSP, X-Content-Type-Options
- [https://vialligmbh.de/german/about](https://vialligmbh.de/german/about) — HSTS, CSP, X-Content-Type-Options
- [https://vialligmbh.de/german/products-p?page=2](https://vialligmbh.de/german/products-p?page=2) — HSTS, CSP, X-Content-Type-Options
- [https://vialligmbh.de/german/products/pp-rc-single-layer-pipe-sdr6-pn20/p](https://vialligmbh.de/german/products/pp-rc-single-layer-pipe-sdr6-pn20/p) — HSTS, CSP, X-Content-Type-Options
- [https://vialligmbh.de/german/uploads/1739280259VIALLI%20PP-RC%20&%20PP-RCT%20Product%20Catalogue%202025.pdf](https://vialligmbh.de/german/uploads/1739280259VIALLI%20PP-RC%20&%20PP-RCT%20Product%20Catalogue%202025.pdf) — HSTS, CSP, X-Content-Type-Options
- [https://vialligmbh.de/image-gallery](https://vialligmbh.de/image-gallery) — X-Content-Type-Options, HSTS, CSP
- [https://vialligmbh.de/products](https://vialligmbh.de/products) — HSTS, CSP, X-Content-Type-Options
- [https://vialligmbh.de/products-p](https://vialligmbh.de/products-p) — HSTS, CSP, X-Content-Type-Options
- [https://vialligmbh.de/products-p?page=2](https://vialligmbh.de/products-p?page=2) — HSTS, CSP, X-Content-Type-Options
- [https://vialligmbh.de/products?page=2](https://vialligmbh.de/products?page=2) — HSTS, CSP, X-Content-Type-Options
- [https://vialligmbh.de/solutions](https://vialligmbh.de/solutions) — HSTS, CSP, X-Content-Type-Options
- [https://vialligmbh.de/uploads/1739280192VIALLI%20PP-RC%20&%20PP-RCT%20Product%20Catalogue%202025.pdf](https://vialligmbh.de/uploads/1739280192VIALLI%20PP-RC%20&%20PP-RCT%20Product%20Catalogue%202025.pdf) — HSTS, CSP, X-Content-Type-Options
- [https://vialligmbh.de/video-gallery](https://vialligmbh.de/video-gallery) — HSTS, CSP, X-Content-Type-Options

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

- Rule: `security.unsafe_cross_origin_links` · Category: Security · Occurrences: 2

- [https://vialligmbh.de/](https://vialligmbh.de/) — 2 external link(s) use target="_blank" without rel="noopener" — the opened page can hijack your tab (reverse tab-napping). Add rel="noopener noreferrer".
- [https://vialligmbh.de/german/](https://vialligmbh.de/german/) — 2 external link(s) use target="_blank" without rel="noopener" — the opened page can hijack your tab (reverse tab-napping). Add rel="noopener noreferrer".

#### Title is very short

- Rule: `title.too_short` · Category: Titles · Occurrences: 4

- [https://vialligmbh.de/contact](https://vialligmbh.de/contact) — 12 chars
- [https://vialligmbh.de/contact-p](https://vialligmbh.de/contact-p) — 12 chars
- [https://vialligmbh.de/dealers](https://vialligmbh.de/dealers) — 9 chars
- [https://vialligmbh.de/gallery-p](https://vialligmbh.de/gallery-p) — 14 chars

#### Missing Twitter Card tag

- Rule: `twitter.missing` · Category: Social · Occurrences: 21

- [https://vialligmbh.de/](https://vialligmbh.de/)
- [https://vialligmbh.de/about](https://vialligmbh.de/about)
- [https://vialligmbh.de/catalogue](https://vialligmbh.de/catalogue)
- [https://vialligmbh.de/certificate](https://vialligmbh.de/certificate)
- [https://vialligmbh.de/certificate/584](https://vialligmbh.de/certificate/584)
- [https://vialligmbh.de/contact](https://vialligmbh.de/contact)
- [https://vialligmbh.de/contact-p](https://vialligmbh.de/contact-p)
- [https://vialligmbh.de/dealers](https://vialligmbh.de/dealers)
- [https://vialligmbh.de/faqs](https://vialligmbh.de/faqs)
- [https://vialligmbh.de/gallery-p](https://vialligmbh.de/gallery-p)
- [https://vialligmbh.de/german/](https://vialligmbh.de/german/)
- [https://vialligmbh.de/german/about](https://vialligmbh.de/german/about)
- [https://vialligmbh.de/german/products-p?page=2](https://vialligmbh.de/german/products-p?page=2)
- [https://vialligmbh.de/german/products/pp-rc-single-layer-pipe-sdr6-pn20/p](https://vialligmbh.de/german/products/pp-rc-single-layer-pipe-sdr6-pn20/p)
- [https://vialligmbh.de/image-gallery](https://vialligmbh.de/image-gallery)
- [https://vialligmbh.de/products](https://vialligmbh.de/products)
- [https://vialligmbh.de/products-p](https://vialligmbh.de/products-p)
- [https://vialligmbh.de/products-p?page=2](https://vialligmbh.de/products-p?page=2)
- [https://vialligmbh.de/products?page=2](https://vialligmbh.de/products?page=2)
- [https://vialligmbh.de/solutions](https://vialligmbh.de/solutions)
- [https://vialligmbh.de/video-gallery](https://vialligmbh.de/video-gallery)

#### Uppercase letters in URL path

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

- [https://vialligmbh.de/german/uploads/1739280259VIALLI%20PP-RC%20&%20PP-RCT%20Product%20Catalogue%202025.pdf](https://vialligmbh.de/german/uploads/1739280259VIALLI%20PP-RC%20&%20PP-RCT%20Product%20Catalogue%202025.pdf)
- [https://vialligmbh.de/uploads/1739280192VIALLI%20PP-RC%20&%20PP-RCT%20Product%20Catalogue%202025.pdf](https://vialligmbh.de/uploads/1739280192VIALLI%20PP-RC%20&%20PP-RCT%20Product%20Catalogue%202025.pdf)

## Checks & coverage

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

- ✗ Agent Readiness — 21 warning(s), 31 notice(s)
- ✓ AI Content — clean
- ✓ Amp — clean
- ✓ Budget — clean
- ✗ Cache — 21 notice(s)
- ✗ Canonical — 4 warning(s)
- ✗ Content — 14 warning(s), 37 notice(s)
- ✗ Crawlability — 2 error(s), 2 warning(s)
- ✗ Duplicate — 9 warning(s), 9 notice(s)
- ✓ Geo — clean
- ✗ Headings — 4 notice(s)
- ✓ Hreflang — clean
- ✗ Images — 21 warning(s), 21 notice(s)
- ✓ Indexability — clean
- ✗ Links — 21 notice(s)
- ✗ Meta Description — 14 notice(s)
- ✓ Mobile — clean
- ✗ Performance — 79 notice(s)
- ✓ Rendering — clean
- ✓ Robots — clean
- ✗ Security — 25 notice(s)
- ✗ Sitemap — 2 error(s)
- ✗ Social — 42 notice(s)
- ✗ Structured Data — 21 notice(s)
- ✗ Titles — 4 notice(s)
- ✗ URL — 2 notice(s)
- ✓ Video — clean

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

## 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