---
tool: Crawlinx SEO audit
source: https://crawlinx.com
domain: polt-lutsenko.ch
report_url: "https://crawlinx.com/audit/polt-lutsenko.ch"
crawl_id: 20260714T020929-b5066caa
health_score: 65
generated_at: 2026-08-26T02:42:09Z
total_pages: 12
html_pages: 12
indexable_pages: 12
errors: 0
warnings: 48
notices: 134
---

# SEO audit: polt-lutsenko.ch

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

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

## Overview

| Metric | Value |
| --- | --- |
| Pages crawled | 12 |
| HTML pages | 12 |
| Indexable | 12 |
| Non-indexable | 0 |
| Orphan pages | 0 |
| Broken internal links | 0 |
| Avg response time | 1017 ms |
| Errors / Warnings / Notices | 0 / 48 / 134 |
| Status codes | 12×200 |

## Categories

| Category | Score | Errors | Warnings | Notices |
| --- | ---: | ---: | ---: | ---: |
| Canonical | 70 | 0 | 12 | 0 |
| Meta Description | 70 | 0 | 12 | 0 |
| Performance | 70 | 0 | 12 | 48 |
| Content | 75 | 0 | 10 | 0 |
| Headings | 95 | 0 | 2 | 2 |
| Agent Readiness | 100 | 0 | 0 | 11 |
| Images | 100 | 0 | 0 | 1 |
| Robots | 100 | 0 | 0 | 1 |
| Security | 100 | 0 | 0 | 24 |
| Social | 100 | 0 | 0 | 24 |
| Structured Data | 100 | 0 | 0 | 12 |
| Titles | 100 | 0 | 0 | 11 |

## Issues

### Warnings (48)

#### Missing canonical tag

- Rule: `canonical.missing` · Category: Canonical · Occurrences: 12

- [https://polt-lutsenko.ch/index.php?id=10](https://polt-lutsenko.ch/index.php?id=10)
- [https://polt-lutsenko.ch/index.php?id=14](https://polt-lutsenko.ch/index.php?id=14)
- [https://polt-lutsenko.ch/index.php?id=15](https://polt-lutsenko.ch/index.php?id=15)
- [https://polt-lutsenko.ch/index.php?id=2](https://polt-lutsenko.ch/index.php?id=2)
- [https://polt-lutsenko.ch/index.php?id=20](https://polt-lutsenko.ch/index.php?id=20)
- [https://polt-lutsenko.ch/index.php?id=28](https://polt-lutsenko.ch/index.php?id=28)
- [https://polt-lutsenko.ch/index.php?id=30](https://polt-lutsenko.ch/index.php?id=30)
- [https://polt-lutsenko.ch/index.php?id=39](https://polt-lutsenko.ch/index.php?id=39)
- [https://polt-lutsenko.ch/index.php?id=4](https://polt-lutsenko.ch/index.php?id=4)
- [https://polt-lutsenko.ch/index.php?id=5](https://polt-lutsenko.ch/index.php?id=5)
- [https://polt-lutsenko.ch/index.php?id=6](https://polt-lutsenko.ch/index.php?id=6)
- [https://polt-lutsenko.ch/index.php?id=8](https://polt-lutsenko.ch/index.php?id=8)

#### Thin content (low word count)

- Rule: `content.thin` · Category: Content · Occurrences: 10

- [https://polt-lutsenko.ch/index.php?id=10](https://polt-lutsenko.ch/index.php?id=10) — 167 words
- [https://polt-lutsenko.ch/index.php?id=14](https://polt-lutsenko.ch/index.php?id=14) — 15 words
- [https://polt-lutsenko.ch/index.php?id=2](https://polt-lutsenko.ch/index.php?id=2) — 9 words
- [https://polt-lutsenko.ch/index.php?id=20](https://polt-lutsenko.ch/index.php?id=20) — 90 words
- [https://polt-lutsenko.ch/index.php?id=28](https://polt-lutsenko.ch/index.php?id=28) — 144 words
- [https://polt-lutsenko.ch/index.php?id=30](https://polt-lutsenko.ch/index.php?id=30) — 37 words
- [https://polt-lutsenko.ch/index.php?id=39](https://polt-lutsenko.ch/index.php?id=39) — 70 words
- [https://polt-lutsenko.ch/index.php?id=4](https://polt-lutsenko.ch/index.php?id=4) — 181 words
- [https://polt-lutsenko.ch/index.php?id=5](https://polt-lutsenko.ch/index.php?id=5) — 171 words
- [https://polt-lutsenko.ch/index.php?id=8](https://polt-lutsenko.ch/index.php?id=8) — 169 words

#### Missing <h1>

- Rule: `h1.missing` · Category: Headings · Occurrences: 2

- [https://polt-lutsenko.ch/index.php?id=14](https://polt-lutsenko.ch/index.php?id=14)
- [https://polt-lutsenko.ch/index.php?id=2](https://polt-lutsenko.ch/index.php?id=2)

#### Missing meta description

- Rule: `meta_desc.missing` · Category: Meta Description · Occurrences: 12

- [https://polt-lutsenko.ch/index.php?id=10](https://polt-lutsenko.ch/index.php?id=10)
- [https://polt-lutsenko.ch/index.php?id=14](https://polt-lutsenko.ch/index.php?id=14)
- [https://polt-lutsenko.ch/index.php?id=15](https://polt-lutsenko.ch/index.php?id=15)
- [https://polt-lutsenko.ch/index.php?id=2](https://polt-lutsenko.ch/index.php?id=2)
- [https://polt-lutsenko.ch/index.php?id=20](https://polt-lutsenko.ch/index.php?id=20)
- [https://polt-lutsenko.ch/index.php?id=28](https://polt-lutsenko.ch/index.php?id=28)
- [https://polt-lutsenko.ch/index.php?id=30](https://polt-lutsenko.ch/index.php?id=30)
- [https://polt-lutsenko.ch/index.php?id=39](https://polt-lutsenko.ch/index.php?id=39)
- [https://polt-lutsenko.ch/index.php?id=4](https://polt-lutsenko.ch/index.php?id=4)
- [https://polt-lutsenko.ch/index.php?id=5](https://polt-lutsenko.ch/index.php?id=5)
- [https://polt-lutsenko.ch/index.php?id=6](https://polt-lutsenko.ch/index.php?id=6)
- [https://polt-lutsenko.ch/index.php?id=8](https://polt-lutsenko.ch/index.php?id=8)

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

- Rule: `perf.render_blocking` · Category: Performance · Occurrences: 12

- [https://polt-lutsenko.ch/index.php?id=10](https://polt-lutsenko.ch/index.php?id=10) — 1 render-blocking <script> in <head> (add defer/async or use type=module)
- [https://polt-lutsenko.ch/index.php?id=14](https://polt-lutsenko.ch/index.php?id=14) — 1 render-blocking <script> in <head> (add defer/async or use type=module)
- [https://polt-lutsenko.ch/index.php?id=15](https://polt-lutsenko.ch/index.php?id=15) — 1 render-blocking <script> in <head> (add defer/async or use type=module)
- [https://polt-lutsenko.ch/index.php?id=2](https://polt-lutsenko.ch/index.php?id=2) — 1 render-blocking <script> in <head> (add defer/async or use type=module)
- [https://polt-lutsenko.ch/index.php?id=20](https://polt-lutsenko.ch/index.php?id=20) — 1 render-blocking <script> in <head> (add defer/async or use type=module)
- [https://polt-lutsenko.ch/index.php?id=28](https://polt-lutsenko.ch/index.php?id=28) — 1 render-blocking <script> in <head> (add defer/async or use type=module)
- [https://polt-lutsenko.ch/index.php?id=30](https://polt-lutsenko.ch/index.php?id=30) — 1 render-blocking <script> in <head> (add defer/async or use type=module)
- [https://polt-lutsenko.ch/index.php?id=39](https://polt-lutsenko.ch/index.php?id=39) — 1 render-blocking <script> in <head> (add defer/async or use type=module)
- [https://polt-lutsenko.ch/index.php?id=4](https://polt-lutsenko.ch/index.php?id=4) — 1 render-blocking <script> in <head> (add defer/async or use type=module)
- [https://polt-lutsenko.ch/index.php?id=5](https://polt-lutsenko.ch/index.php?id=5) — 1 render-blocking <script> in <head> (add defer/async or use type=module)
- [https://polt-lutsenko.ch/index.php?id=6](https://polt-lutsenko.ch/index.php?id=6) — 1 render-blocking <script> in <head> (add defer/async or use type=module)
- [https://polt-lutsenko.ch/index.php?id=8](https://polt-lutsenko.ch/index.php?id=8) — 1 render-blocking <script> in <head> (add defer/async or use type=module)

### Notices (134)

#### Heading levels skip a level

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

- [https://polt-lutsenko.ch/index.php?id=10](https://polt-lutsenko.ch/index.php?id=10) — h5 follows h1 — skips h2

#### No llms.txt for AI agents

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

- [https://polt-lutsenko.ch/](https://polt-lutsenko.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: 9

- [https://polt-lutsenko.ch/index.php?id=10](https://polt-lutsenko.ch/index.php?id=10) — add a <main> element (or role=main) around the primary content
- [https://polt-lutsenko.ch/index.php?id=15](https://polt-lutsenko.ch/index.php?id=15) — add a <main> element (or role=main) around the primary content
- [https://polt-lutsenko.ch/index.php?id=20](https://polt-lutsenko.ch/index.php?id=20) — add a <main> element (or role=main) around the primary content
- [https://polt-lutsenko.ch/index.php?id=28](https://polt-lutsenko.ch/index.php?id=28) — add a <main> element (or role=main) around the primary content
- [https://polt-lutsenko.ch/index.php?id=39](https://polt-lutsenko.ch/index.php?id=39) — add a <main> element (or role=main) around the primary content
- [https://polt-lutsenko.ch/index.php?id=4](https://polt-lutsenko.ch/index.php?id=4) — add a <main> element (or role=main) around the primary content
- [https://polt-lutsenko.ch/index.php?id=5](https://polt-lutsenko.ch/index.php?id=5) — add a <main> element (or role=main) around the primary content
- [https://polt-lutsenko.ch/index.php?id=6](https://polt-lutsenko.ch/index.php?id=6) — add a <main> element (or role=main) around the primary content
- [https://polt-lutsenko.ch/index.php?id=8](https://polt-lutsenko.ch/index.php?id=8) — add a <main> element (or role=main) around the primary content

#### Multiple <h1> elements

- Rule: `h1.multiple` · Category: Headings · Occurrences: 2

- [https://polt-lutsenko.ch/index.php?id=15](https://polt-lutsenko.ch/index.php?id=15) — 4 <h1> elements
- [https://polt-lutsenko.ch/index.php?id=30](https://polt-lutsenko.ch/index.php?id=30) — 3 <h1> elements

#### Likely hero image lacks fetchpriority=high

- Rule: `images.hero_no_fetchpriority` · Category: Performance · Occurrences: 12

- [https://polt-lutsenko.ch/index.php?id=10](https://polt-lutsenko.ch/index.php?id=10) — the likely hero/LCP image (tp.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://polt-lutsenko.ch/index.php?id=14](https://polt-lutsenko.ch/index.php?id=14) — the likely hero/LCP image (tp.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://polt-lutsenko.ch/index.php?id=15](https://polt-lutsenko.ch/index.php?id=15) — the likely hero/LCP image (tp.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://polt-lutsenko.ch/index.php?id=2](https://polt-lutsenko.ch/index.php?id=2) — the likely hero/LCP image (tp.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://polt-lutsenko.ch/index.php?id=20](https://polt-lutsenko.ch/index.php?id=20) — the likely hero/LCP image (tp.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://polt-lutsenko.ch/index.php?id=28](https://polt-lutsenko.ch/index.php?id=28) — the likely hero/LCP image (tp.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://polt-lutsenko.ch/index.php?id=30](https://polt-lutsenko.ch/index.php?id=30) — the likely hero/LCP image (tp.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://polt-lutsenko.ch/index.php?id=39](https://polt-lutsenko.ch/index.php?id=39) — the likely hero/LCP image (tp.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://polt-lutsenko.ch/index.php?id=4](https://polt-lutsenko.ch/index.php?id=4) — the likely hero/LCP image (tp.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://polt-lutsenko.ch/index.php?id=5](https://polt-lutsenko.ch/index.php?id=5) — the likely hero/LCP image (tp.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://polt-lutsenko.ch/index.php?id=6](https://polt-lutsenko.ch/index.php?id=6) — the likely hero/LCP image (tp.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://polt-lutsenko.ch/index.php?id=8](https://polt-lutsenko.ch/index.php?id=8) — the likely hero/LCP image (tp.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: 1

- [https://polt-lutsenko.ch/index.php?id=30](https://polt-lutsenko.ch/index.php?id=30) — 1 of 2 images without width/height

#### Missing Open Graph tags

- Rule: `og.missing` · Category: Social · Occurrences: 12

- [https://polt-lutsenko.ch/index.php?id=10](https://polt-lutsenko.ch/index.php?id=10) — og:title, og:description, og:image
- [https://polt-lutsenko.ch/index.php?id=14](https://polt-lutsenko.ch/index.php?id=14) — og:title, og:description, og:image
- [https://polt-lutsenko.ch/index.php?id=15](https://polt-lutsenko.ch/index.php?id=15) — og:title, og:description, og:image
- [https://polt-lutsenko.ch/index.php?id=2](https://polt-lutsenko.ch/index.php?id=2) — og:title, og:description, og:image
- [https://polt-lutsenko.ch/index.php?id=20](https://polt-lutsenko.ch/index.php?id=20) — og:title, og:description, og:image
- [https://polt-lutsenko.ch/index.php?id=28](https://polt-lutsenko.ch/index.php?id=28) — og:title, og:description, og:image
- [https://polt-lutsenko.ch/index.php?id=30](https://polt-lutsenko.ch/index.php?id=30) — og:title, og:description, og:image
- [https://polt-lutsenko.ch/index.php?id=39](https://polt-lutsenko.ch/index.php?id=39) — og:title, og:description, og:image
- [https://polt-lutsenko.ch/index.php?id=4](https://polt-lutsenko.ch/index.php?id=4) — og:title, og:description, og:image
- [https://polt-lutsenko.ch/index.php?id=5](https://polt-lutsenko.ch/index.php?id=5) — og:title, og:description, og:image
- [https://polt-lutsenko.ch/index.php?id=6](https://polt-lutsenko.ch/index.php?id=6) — og:title, og:description, og:image
- [https://polt-lutsenko.ch/index.php?id=8](https://polt-lutsenko.ch/index.php?id=8) — 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: 12

- [https://polt-lutsenko.ch/index.php?id=10](https://polt-lutsenko.ch/index.php?id=10) — 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://polt-lutsenko.ch/index.php?id=14](https://polt-lutsenko.ch/index.php?id=14) — 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://polt-lutsenko.ch/index.php?id=15](https://polt-lutsenko.ch/index.php?id=15) — 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://polt-lutsenko.ch/index.php?id=2](https://polt-lutsenko.ch/index.php?id=2) — 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://polt-lutsenko.ch/index.php?id=20](https://polt-lutsenko.ch/index.php?id=20) — 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://polt-lutsenko.ch/index.php?id=28](https://polt-lutsenko.ch/index.php?id=28) — 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://polt-lutsenko.ch/index.php?id=30](https://polt-lutsenko.ch/index.php?id=30) — 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://polt-lutsenko.ch/index.php?id=39](https://polt-lutsenko.ch/index.php?id=39) — 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://polt-lutsenko.ch/index.php?id=4](https://polt-lutsenko.ch/index.php?id=4) — 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://polt-lutsenko.ch/index.php?id=5](https://polt-lutsenko.ch/index.php?id=5) — 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://polt-lutsenko.ch/index.php?id=6](https://polt-lutsenko.ch/index.php?id=6) — 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://polt-lutsenko.ch/index.php?id=8](https://polt-lutsenko.ch/index.php?id=8) — 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.

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

- Rule: `perf.no_etag` · Category: Performance · Occurrences: 12

- [https://polt-lutsenko.ch/index.php?id=10](https://polt-lutsenko.ch/index.php?id=10) — 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://polt-lutsenko.ch/index.php?id=14](https://polt-lutsenko.ch/index.php?id=14) — 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://polt-lutsenko.ch/index.php?id=15](https://polt-lutsenko.ch/index.php?id=15) — 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://polt-lutsenko.ch/index.php?id=2](https://polt-lutsenko.ch/index.php?id=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://polt-lutsenko.ch/index.php?id=20](https://polt-lutsenko.ch/index.php?id=20) — 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://polt-lutsenko.ch/index.php?id=28](https://polt-lutsenko.ch/index.php?id=28) — 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://polt-lutsenko.ch/index.php?id=30](https://polt-lutsenko.ch/index.php?id=30) — 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://polt-lutsenko.ch/index.php?id=39](https://polt-lutsenko.ch/index.php?id=39) — 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://polt-lutsenko.ch/index.php?id=4](https://polt-lutsenko.ch/index.php?id=4) — 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://polt-lutsenko.ch/index.php?id=5](https://polt-lutsenko.ch/index.php?id=5) — 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://polt-lutsenko.ch/index.php?id=6](https://polt-lutsenko.ch/index.php?id=6) — 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://polt-lutsenko.ch/index.php?id=8](https://polt-lutsenko.ch/index.php?id=8) — 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: 12

- [https://polt-lutsenko.ch/index.php?id=10](https://polt-lutsenko.ch/index.php?id=10) — 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://polt-lutsenko.ch/index.php?id=14](https://polt-lutsenko.ch/index.php?id=14) — 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://polt-lutsenko.ch/index.php?id=15](https://polt-lutsenko.ch/index.php?id=15) — 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://polt-lutsenko.ch/index.php?id=2](https://polt-lutsenko.ch/index.php?id=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://polt-lutsenko.ch/index.php?id=20](https://polt-lutsenko.ch/index.php?id=20) — 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://polt-lutsenko.ch/index.php?id=28](https://polt-lutsenko.ch/index.php?id=28) — 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://polt-lutsenko.ch/index.php?id=30](https://polt-lutsenko.ch/index.php?id=30) — 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://polt-lutsenko.ch/index.php?id=39](https://polt-lutsenko.ch/index.php?id=39) — 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://polt-lutsenko.ch/index.php?id=4](https://polt-lutsenko.ch/index.php?id=4) — 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://polt-lutsenko.ch/index.php?id=5](https://polt-lutsenko.ch/index.php?id=5) — 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://polt-lutsenko.ch/index.php?id=6](https://polt-lutsenko.ch/index.php?id=6) — 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://polt-lutsenko.ch/index.php?id=8](https://polt-lutsenko.ch/index.php?id=8) — 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.

#### robots.txt missing (root returns 404/none)

- Rule: `robots.txt_missing` · Category: Robots · Occurrences: 1

- [https://polt-lutsenko.ch/](https://polt-lutsenko.ch/) — robots.txt did not return a 200 at the site root — a healthy site should serve one (declare your sitemap and confirm the host serves root files)

#### No structured data detected

- Rule: `schema.none` · Category: Structured Data · Occurrences: 12

- [https://polt-lutsenko.ch/index.php?id=10](https://polt-lutsenko.ch/index.php?id=10)
- [https://polt-lutsenko.ch/index.php?id=14](https://polt-lutsenko.ch/index.php?id=14)
- [https://polt-lutsenko.ch/index.php?id=15](https://polt-lutsenko.ch/index.php?id=15)
- [https://polt-lutsenko.ch/index.php?id=2](https://polt-lutsenko.ch/index.php?id=2)
- [https://polt-lutsenko.ch/index.php?id=20](https://polt-lutsenko.ch/index.php?id=20)
- [https://polt-lutsenko.ch/index.php?id=28](https://polt-lutsenko.ch/index.php?id=28)
- [https://polt-lutsenko.ch/index.php?id=30](https://polt-lutsenko.ch/index.php?id=30)
- [https://polt-lutsenko.ch/index.php?id=39](https://polt-lutsenko.ch/index.php?id=39)
- [https://polt-lutsenko.ch/index.php?id=4](https://polt-lutsenko.ch/index.php?id=4)
- [https://polt-lutsenko.ch/index.php?id=5](https://polt-lutsenko.ch/index.php?id=5)
- [https://polt-lutsenko.ch/index.php?id=6](https://polt-lutsenko.ch/index.php?id=6)
- [https://polt-lutsenko.ch/index.php?id=8](https://polt-lutsenko.ch/index.php?id=8)

#### Missing recommended security headers

- Rule: `security.missing_headers` · Category: Security · Occurrences: 12

- [https://polt-lutsenko.ch/index.php?id=10](https://polt-lutsenko.ch/index.php?id=10) — HSTS, CSP, X-Content-Type-Options
- [https://polt-lutsenko.ch/index.php?id=14](https://polt-lutsenko.ch/index.php?id=14) — HSTS, CSP, X-Content-Type-Options
- [https://polt-lutsenko.ch/index.php?id=15](https://polt-lutsenko.ch/index.php?id=15) — HSTS, CSP, X-Content-Type-Options
- [https://polt-lutsenko.ch/index.php?id=2](https://polt-lutsenko.ch/index.php?id=2) — HSTS, CSP, X-Content-Type-Options
- [https://polt-lutsenko.ch/index.php?id=20](https://polt-lutsenko.ch/index.php?id=20) — X-Content-Type-Options, HSTS, CSP
- [https://polt-lutsenko.ch/index.php?id=28](https://polt-lutsenko.ch/index.php?id=28) — HSTS, CSP, X-Content-Type-Options
- [https://polt-lutsenko.ch/index.php?id=30](https://polt-lutsenko.ch/index.php?id=30) — HSTS, CSP, X-Content-Type-Options
- [https://polt-lutsenko.ch/index.php?id=39](https://polt-lutsenko.ch/index.php?id=39) — HSTS, CSP, X-Content-Type-Options
- [https://polt-lutsenko.ch/index.php?id=4](https://polt-lutsenko.ch/index.php?id=4) — HSTS, CSP, X-Content-Type-Options
- [https://polt-lutsenko.ch/index.php?id=5](https://polt-lutsenko.ch/index.php?id=5) — HSTS, CSP, X-Content-Type-Options
- [https://polt-lutsenko.ch/index.php?id=6](https://polt-lutsenko.ch/index.php?id=6) — HSTS, CSP, X-Content-Type-Options
- [https://polt-lutsenko.ch/index.php?id=8](https://polt-lutsenko.ch/index.php?id=8) — HSTS, CSP, X-Content-Type-Options

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

- Rule: `security.unsafe_cross_origin_links` · Category: Security · Occurrences: 12

- [https://polt-lutsenko.ch/index.php?id=10](https://polt-lutsenko.ch/index.php?id=10) — 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://polt-lutsenko.ch/index.php?id=14](https://polt-lutsenko.ch/index.php?id=14) — 1 external link(s) use target="_blank" without rel="noopener" — the opened page can hijack your tab (reverse tab-napping). Add rel="noopener noreferrer".
- [https://polt-lutsenko.ch/index.php?id=15](https://polt-lutsenko.ch/index.php?id=15) — 1 external link(s) use target="_blank" without rel="noopener" — the opened page can hijack your tab (reverse tab-napping). Add rel="noopener noreferrer".
- [https://polt-lutsenko.ch/index.php?id=2](https://polt-lutsenko.ch/index.php?id=2) — 1 external link(s) use target="_blank" without rel="noopener" — the opened page can hijack your tab (reverse tab-napping). Add rel="noopener noreferrer".
- [https://polt-lutsenko.ch/index.php?id=20](https://polt-lutsenko.ch/index.php?id=20) — 1 external link(s) use target="_blank" without rel="noopener" — the opened page can hijack your tab (reverse tab-napping). Add rel="noopener noreferrer".
- [https://polt-lutsenko.ch/index.php?id=28](https://polt-lutsenko.ch/index.php?id=28) — 1 external link(s) use target="_blank" without rel="noopener" — the opened page can hijack your tab (reverse tab-napping). Add rel="noopener noreferrer".
- [https://polt-lutsenko.ch/index.php?id=30](https://polt-lutsenko.ch/index.php?id=30) — 1 external link(s) use target="_blank" without rel="noopener" — the opened page can hijack your tab (reverse tab-napping). Add rel="noopener noreferrer".
- [https://polt-lutsenko.ch/index.php?id=39](https://polt-lutsenko.ch/index.php?id=39) — 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://polt-lutsenko.ch/index.php?id=4](https://polt-lutsenko.ch/index.php?id=4) — 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://polt-lutsenko.ch/index.php?id=5](https://polt-lutsenko.ch/index.php?id=5) — 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://polt-lutsenko.ch/index.php?id=6](https://polt-lutsenko.ch/index.php?id=6) — 1 external link(s) use target="_blank" without rel="noopener" — the opened page can hijack your tab (reverse tab-napping). Add rel="noopener noreferrer".
- [https://polt-lutsenko.ch/index.php?id=8](https://polt-lutsenko.ch/index.php?id=8) — 1 external link(s) use target="_blank" without rel="noopener" — the opened page can hijack your tab (reverse tab-napping). Add rel="noopener noreferrer".

#### Title tag is identical to the H1 (missed keyword variation)

- Rule: `title.same_as_h1` · Category: Titles · Occurrences: 3

- [https://polt-lutsenko.ch/index.php?id=10](https://polt-lutsenko.ch/index.php?id=10) — the <title> and the H1 are identical — differentiate them to cover more query variation
- [https://polt-lutsenko.ch/index.php?id=4](https://polt-lutsenko.ch/index.php?id=4) — the <title> and the H1 are identical — differentiate them to cover more query variation
- [https://polt-lutsenko.ch/index.php?id=8](https://polt-lutsenko.ch/index.php?id=8) — the <title> and the H1 are identical — differentiate them to cover more query variation

#### Title is very short

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

- [https://polt-lutsenko.ch/index.php?id=10](https://polt-lutsenko.ch/index.php?id=10) — 13 chars
- [https://polt-lutsenko.ch/index.php?id=14](https://polt-lutsenko.ch/index.php?id=14) — 8 chars
- [https://polt-lutsenko.ch/index.php?id=2](https://polt-lutsenko.ch/index.php?id=2) — 4 chars
- [https://polt-lutsenko.ch/index.php?id=20](https://polt-lutsenko.ch/index.php?id=20) — 12 chars
- [https://polt-lutsenko.ch/index.php?id=28](https://polt-lutsenko.ch/index.php?id=28) — 5 chars
- [https://polt-lutsenko.ch/index.php?id=30](https://polt-lutsenko.ch/index.php?id=30) — 8 chars
- [https://polt-lutsenko.ch/index.php?id=39](https://polt-lutsenko.ch/index.php?id=39) — 12 chars
- [https://polt-lutsenko.ch/index.php?id=5](https://polt-lutsenko.ch/index.php?id=5) — 8 chars

#### Missing Twitter Card tag

- Rule: `twitter.missing` · Category: Social · Occurrences: 12

- [https://polt-lutsenko.ch/index.php?id=10](https://polt-lutsenko.ch/index.php?id=10)
- [https://polt-lutsenko.ch/index.php?id=14](https://polt-lutsenko.ch/index.php?id=14)
- [https://polt-lutsenko.ch/index.php?id=15](https://polt-lutsenko.ch/index.php?id=15)
- [https://polt-lutsenko.ch/index.php?id=2](https://polt-lutsenko.ch/index.php?id=2)
- [https://polt-lutsenko.ch/index.php?id=20](https://polt-lutsenko.ch/index.php?id=20)
- [https://polt-lutsenko.ch/index.php?id=28](https://polt-lutsenko.ch/index.php?id=28)
- [https://polt-lutsenko.ch/index.php?id=30](https://polt-lutsenko.ch/index.php?id=30)
- [https://polt-lutsenko.ch/index.php?id=39](https://polt-lutsenko.ch/index.php?id=39)
- [https://polt-lutsenko.ch/index.php?id=4](https://polt-lutsenko.ch/index.php?id=4)
- [https://polt-lutsenko.ch/index.php?id=5](https://polt-lutsenko.ch/index.php?id=5)
- [https://polt-lutsenko.ch/index.php?id=6](https://polt-lutsenko.ch/index.php?id=6)
- [https://polt-lutsenko.ch/index.php?id=8](https://polt-lutsenko.ch/index.php?id=8)

## Checks & coverage

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

- ✗ Agent Readiness — 11 notice(s)
- ✓ AI Content — clean
- ✓ Amp — clean
- ✓ Budget — clean
- ✓ Cache — clean
- ✗ Canonical — 12 warning(s)
- ✗ Content — 10 warning(s)
- ✓ Crawlability — clean
- ✓ Duplicate — clean
- ✓ Geo — clean
- ✗ Headings — 2 warning(s), 2 notice(s)
- ✓ Hreflang — clean
- ✗ Images — 1 notice(s)
- ✓ Indexability — clean
- ✓ Links — clean
- ✗ Meta Description — 12 warning(s)
- ✓ Mobile — clean
- ✗ Performance — 12 warning(s), 48 notice(s)
- ✓ Rendering — clean
- ✗ Robots — 1 notice(s)
- ✗ Security — 24 notice(s)
- ✓ Sitemap — clean
- ✗ Social — 24 notice(s)
- ✗ Structured Data — 12 notice(s)
- ✗ Titles — 11 notice(s)
- ✓ URL — clean
- ✓ Video — clean

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