---
tool: Crawlinx SEO audit
source: https://crawlinx.com
domain: vena.pl
report_url: "https://crawlinx.com/audit/vena.pl"
crawl_id: 20260801T011625-73e7b93e
health_score: 65
generated_at: 2026-08-26T17:30:58Z
total_pages: 15
html_pages: 15
indexable_pages: 15
errors: 0
warnings: 63
notices: 152
---

# SEO audit: vena.pl

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

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

## Overview

| Metric | Value |
| --- | --- |
| Pages crawled | 15 |
| HTML pages | 15 |
| Indexable | 15 |
| Non-indexable | 0 |
| Orphan pages | 0 |
| Broken internal links | 0 |
| Avg response time | 4506 ms |
| Errors / Warnings / Notices | 0 / 63 / 152 |
| Status codes | 15×200 |

## Categories

| Category | Score | Errors | Warnings | Notices |
| --- | ---: | ---: | ---: | ---: |
| Agent Readiness | 72 | 0 | 14 | 18 |
| Meta Description | 72 | 0 | 14 | 0 |
| Performance | 72 | 0 | 14 | 32 |
| Headings | 74 | 0 | 13 | 0 |
| Content | 86 | 0 | 7 | 14 |
| Crawlability | 98 | 0 | 1 | 0 |
| Images | 100 | 0 | 0 | 16 |
| Links | 100 | 0 | 0 | 14 |
| Security | 100 | 0 | 0 | 16 |
| Social | 100 | 0 | 0 | 28 |
| Structured Data | 100 | 0 | 0 | 14 |

## Issues

### Warnings (63)

#### Control has no accessible name

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

- [https://vena.pl/](https://vena.pl/) — 19 button/link(s) with no text or aria-label — an agent can't target them
- [https://vena.pl/10680-2/](https://vena.pl/10680-2/) — 2 button/link(s) with no text or aria-label — an agent can't target them
- [https://vena.pl/a-s-creation/](https://vena.pl/a-s-creation/) — 2 button/link(s) with no text or aria-label — an agent can't target them
- [https://vena.pl/dlaczego-tapety/](https://vena.pl/dlaczego-tapety/) — 2 button/link(s) with no text or aria-label — an agent can't target them
- [https://vena.pl/grandeco/](https://vena.pl/grandeco/) — 2 button/link(s) with no text or aria-label — an agent can't target them
- [https://vena.pl/henkel/](https://vena.pl/henkel/) — 2 button/link(s) with no text or aria-label — an agent can't target them
- [https://vena.pl/jak-tapetowac/](https://vena.pl/jak-tapetowac/) — 2 button/link(s) with no text or aria-label — an agent can't target them
- [https://vena.pl/komar/](https://vena.pl/komar/) — 2 button/link(s) with no text or aria-label — an agent can't target them
- [https://vena.pl/kontakt/](https://vena.pl/kontakt/) — 2 button/link(s) with no text or aria-label — an agent can't target them
- [https://vena.pl/nasza-oferta/](https://vena.pl/nasza-oferta/) — 2 button/link(s) with no text or aria-label — an agent can't target them
- [https://vena.pl/palitra/](https://vena.pl/palitra/) — 2 button/link(s) with no text or aria-label — an agent can't target them
- [https://vena.pl/przykladowa-strona/](https://vena.pl/przykladowa-strona/) — 2 button/link(s) with no text or aria-label — an agent can't target them
- [https://vena.pl/reklamacje/](https://vena.pl/reklamacje/) — 2 button/link(s) with no text or aria-label — an agent can't target them
- [https://vena.pl/wizard-and-genius/](https://vena.pl/wizard-and-genius/) — 2 button/link(s) with no text or aria-label — an agent can't target them

#### Thin content (low word count)

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

- [https://vena.pl/a-s-creation/](https://vena.pl/a-s-creation/) — 161 words
- [https://vena.pl/grandeco/](https://vena.pl/grandeco/) — 173 words
- [https://vena.pl/henkel/](https://vena.pl/henkel/) — 107 words
- [https://vena.pl/komar/](https://vena.pl/komar/) — 163 words
- [https://vena.pl/kontakt/](https://vena.pl/kontakt/) — 93 words
- [https://vena.pl/palitra/](https://vena.pl/palitra/) — 60 words
- [https://vena.pl/wizard-and-genius/](https://vena.pl/wizard-and-genius/) — 98 words

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

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

- [https://vena.pl/dla-architektow/](https://vena.pl/dla-architektow/) — HTTP 200, 0 words after 3 attempts

#### Missing <h1>

- Rule: `h1.missing` · Category: Headings · Occurrences: 13

- [https://vena.pl/10680-2/](https://vena.pl/10680-2/)
- [https://vena.pl/a-s-creation/](https://vena.pl/a-s-creation/)
- [https://vena.pl/dlaczego-tapety/](https://vena.pl/dlaczego-tapety/)
- [https://vena.pl/grandeco/](https://vena.pl/grandeco/)
- [https://vena.pl/henkel/](https://vena.pl/henkel/)
- [https://vena.pl/jak-tapetowac/](https://vena.pl/jak-tapetowac/)
- [https://vena.pl/komar/](https://vena.pl/komar/)
- [https://vena.pl/kontakt/](https://vena.pl/kontakt/)
- [https://vena.pl/nasza-oferta/](https://vena.pl/nasza-oferta/)
- [https://vena.pl/palitra/](https://vena.pl/palitra/)
- [https://vena.pl/przykladowa-strona/](https://vena.pl/przykladowa-strona/)
- [https://vena.pl/reklamacje/](https://vena.pl/reklamacje/)
- [https://vena.pl/wizard-and-genius/](https://vena.pl/wizard-and-genius/)

#### Missing meta description

- Rule: `meta_desc.missing` · Category: Meta Description · Occurrences: 14

- [https://vena.pl/](https://vena.pl/)
- [https://vena.pl/10680-2/](https://vena.pl/10680-2/)
- [https://vena.pl/a-s-creation/](https://vena.pl/a-s-creation/)
- [https://vena.pl/dlaczego-tapety/](https://vena.pl/dlaczego-tapety/)
- [https://vena.pl/grandeco/](https://vena.pl/grandeco/)
- [https://vena.pl/henkel/](https://vena.pl/henkel/)
- [https://vena.pl/jak-tapetowac/](https://vena.pl/jak-tapetowac/)
- [https://vena.pl/komar/](https://vena.pl/komar/)
- [https://vena.pl/kontakt/](https://vena.pl/kontakt/)
- [https://vena.pl/nasza-oferta/](https://vena.pl/nasza-oferta/)
- [https://vena.pl/palitra/](https://vena.pl/palitra/)
- [https://vena.pl/przykladowa-strona/](https://vena.pl/przykladowa-strona/)
- [https://vena.pl/reklamacje/](https://vena.pl/reklamacje/)
- [https://vena.pl/wizard-and-genius/](https://vena.pl/wizard-and-genius/)

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

- Rule: `perf.render_blocking` · Category: Performance · Occurrences: 14

- [https://vena.pl/](https://vena.pl/) — 6 render-blocking <script> in <head> (add defer/async or use type=module)
- [https://vena.pl/10680-2/](https://vena.pl/10680-2/) — 2 render-blocking <script> in <head> (add defer/async or use type=module)
- [https://vena.pl/a-s-creation/](https://vena.pl/a-s-creation/) — 6 render-blocking <script> in <head> (add defer/async or use type=module)
- [https://vena.pl/dlaczego-tapety/](https://vena.pl/dlaczego-tapety/) — 2 render-blocking <script> in <head> (add defer/async or use type=module)
- [https://vena.pl/grandeco/](https://vena.pl/grandeco/) — 6 render-blocking <script> in <head> (add defer/async or use type=module)
- [https://vena.pl/henkel/](https://vena.pl/henkel/) — 2 render-blocking <script> in <head> (add defer/async or use type=module)
- [https://vena.pl/jak-tapetowac/](https://vena.pl/jak-tapetowac/) — 2 render-blocking <script> in <head> (add defer/async or use type=module)
- [https://vena.pl/komar/](https://vena.pl/komar/) — 6 render-blocking <script> in <head> (add defer/async or use type=module)
- [https://vena.pl/kontakt/](https://vena.pl/kontakt/) — 2 render-blocking <script> in <head> (add defer/async or use type=module)
- [https://vena.pl/nasza-oferta/](https://vena.pl/nasza-oferta/) — 5 render-blocking <script> in <head> (add defer/async or use type=module)
- [https://vena.pl/palitra/](https://vena.pl/palitra/) — 6 render-blocking <script> in <head> (add defer/async or use type=module)
- [https://vena.pl/przykladowa-strona/](https://vena.pl/przykladowa-strona/) — 2 render-blocking <script> in <head> (add defer/async or use type=module)
- [https://vena.pl/reklamacje/](https://vena.pl/reklamacje/) — 2 render-blocking <script> in <head> (add defer/async or use type=module)
- [https://vena.pl/wizard-and-genius/](https://vena.pl/wizard-and-genius/) — 6 render-blocking <script> in <head> (add defer/async or use type=module)

### Notices (152)

#### Heading levels skip a level

- Rule: `agent.heading_skip` · Category: Agent Readiness · Occurrences: 3

- [https://vena.pl/grandeco/](https://vena.pl/grandeco/) — h4 follows h2 — skips h3
- [https://vena.pl/komar/](https://vena.pl/komar/) — h4 follows h2 — skips h3
- [https://vena.pl/nasza-oferta/](https://vena.pl/nasza-oferta/) — h4 follows h2 — skips h3

#### No llms.txt for AI agents

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

- [https://vena.pl/](https://vena.pl/) — 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://vena.pl/](https://vena.pl/) — add a <main> element (or role=main) around the primary content
- [https://vena.pl/10680-2/](https://vena.pl/10680-2/) — add a <main> element (or role=main) around the primary content
- [https://vena.pl/a-s-creation/](https://vena.pl/a-s-creation/) — add a <main> element (or role=main) around the primary content
- [https://vena.pl/dlaczego-tapety/](https://vena.pl/dlaczego-tapety/) — add a <main> element (or role=main) around the primary content
- [https://vena.pl/grandeco/](https://vena.pl/grandeco/) — add a <main> element (or role=main) around the primary content
- [https://vena.pl/henkel/](https://vena.pl/henkel/) — add a <main> element (or role=main) around the primary content
- [https://vena.pl/jak-tapetowac/](https://vena.pl/jak-tapetowac/) — add a <main> element (or role=main) around the primary content
- [https://vena.pl/komar/](https://vena.pl/komar/) — add a <main> element (or role=main) around the primary content
- [https://vena.pl/kontakt/](https://vena.pl/kontakt/) — add a <main> element (or role=main) around the primary content
- [https://vena.pl/nasza-oferta/](https://vena.pl/nasza-oferta/) — add a <main> element (or role=main) around the primary content
- [https://vena.pl/palitra/](https://vena.pl/palitra/) — add a <main> element (or role=main) around the primary content
- [https://vena.pl/przykladowa-strona/](https://vena.pl/przykladowa-strona/) — add a <main> element (or role=main) around the primary content
- [https://vena.pl/reklamacje/](https://vena.pl/reklamacje/) — add a <main> element (or role=main) around the primary content
- [https://vena.pl/wizard-and-genius/](https://vena.pl/wizard-and-genius/) — add a <main> element (or role=main) around the primary content

#### Low text-to-HTML ratio

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

- [https://vena.pl/](https://vena.pl/) — 1.2%
- [https://vena.pl/10680-2/](https://vena.pl/10680-2/) — 2.9%
- [https://vena.pl/a-s-creation/](https://vena.pl/a-s-creation/) — 2.1%
- [https://vena.pl/dlaczego-tapety/](https://vena.pl/dlaczego-tapety/) — 2.1%
- [https://vena.pl/grandeco/](https://vena.pl/grandeco/) — 2.0%
- [https://vena.pl/henkel/](https://vena.pl/henkel/) — 0.7%
- [https://vena.pl/jak-tapetowac/](https://vena.pl/jak-tapetowac/) — 3.3%
- [https://vena.pl/komar/](https://vena.pl/komar/) — 1.5%
- [https://vena.pl/kontakt/](https://vena.pl/kontakt/) — 0.6%
- [https://vena.pl/nasza-oferta/](https://vena.pl/nasza-oferta/) — 2.9%
- [https://vena.pl/palitra/](https://vena.pl/palitra/) — 0.4%
- [https://vena.pl/przykladowa-strona/](https://vena.pl/przykladowa-strona/) — 1.3%
- [https://vena.pl/reklamacje/](https://vena.pl/reklamacje/) — 4.6%
- [https://vena.pl/wizard-and-genius/](https://vena.pl/wizard-and-genius/) — 0.6%

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

- Rule: `images.generic_filename` · Category: Images · Occurrences: 2

- [https://vena.pl/](https://vena.pl/) — 5 image(s) use a generic/auto-generated filename (e.g. IMG_1234.jpg, photo1.png, a bare UUID). Google reads the filename as a signal of image content, so rename files descriptively (hyphen-separated words) before upload.
- [https://vena.pl/kontakt/](https://vena.pl/kontakt/) — 1 image(s) use a generic/auto-generated filename (e.g. IMG_1234.jpg, photo1.png, a bare UUID). Google reads the filename as a signal of image content, so rename files descriptively (hyphen-separated words) before upload.

#### Likely hero image lacks fetchpriority=high

- Rule: `images.hero_no_fetchpriority` · Category: Performance · Occurrences: 1

- [https://vena.pl/](https://vena.pl/) — the likely hero/LCP image (vena-logo-white-ost-1-1.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: 14

- [https://vena.pl/](https://vena.pl/) — 17 of 41 images without width/height
- [https://vena.pl/10680-2/](https://vena.pl/10680-2/) — 2 of 4 images without width/height
- [https://vena.pl/a-s-creation/](https://vena.pl/a-s-creation/) — 28 of 41 images without width/height
- [https://vena.pl/dlaczego-tapety/](https://vena.pl/dlaczego-tapety/) — 2 of 3 images without width/height
- [https://vena.pl/grandeco/](https://vena.pl/grandeco/) — 35 of 57 images without width/height
- [https://vena.pl/henkel/](https://vena.pl/henkel/) — 2 of 8 images without width/height
- [https://vena.pl/jak-tapetowac/](https://vena.pl/jak-tapetowac/) — 2 of 3 images without width/height
- [https://vena.pl/komar/](https://vena.pl/komar/) — 7 of 9 images without width/height
- [https://vena.pl/kontakt/](https://vena.pl/kontakt/) — 2 of 4 images without width/height
- [https://vena.pl/nasza-oferta/](https://vena.pl/nasza-oferta/) — 2 of 48 images without width/height
- [https://vena.pl/palitra/](https://vena.pl/palitra/) — 2 of 3 images without width/height
- [https://vena.pl/przykladowa-strona/](https://vena.pl/przykladowa-strona/) — 2 of 3 images without width/height
- [https://vena.pl/reklamacje/](https://vena.pl/reklamacje/) — 2 of 3 images without width/height
- [https://vena.pl/wizard-and-genius/](https://vena.pl/wizard-and-genius/) — 2 of 3 images without width/height

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

- Rule: `links.no_anchor_text` · Category: Links · Occurrences: 14

- [https://vena.pl/](https://vena.pl/) — 19 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://vena.pl/10680-2/](https://vena.pl/10680-2/) — 2 internal link(s) have no anchor text, aria-label, or image alt — they pass no keyword signal and are unusable to screen readers. Add descriptive text or an aria-label.
- [https://vena.pl/a-s-creation/](https://vena.pl/a-s-creation/) — 2 internal link(s) have no anchor text, aria-label, or image alt — they pass no keyword signal and are unusable to screen readers. Add descriptive text or an aria-label.
- [https://vena.pl/dlaczego-tapety/](https://vena.pl/dlaczego-tapety/) — 2 internal link(s) have no anchor text, aria-label, or image alt — they pass no keyword signal and are unusable to screen readers. Add descriptive text or an aria-label.
- [https://vena.pl/grandeco/](https://vena.pl/grandeco/) — 2 internal link(s) have no anchor text, aria-label, or image alt — they pass no keyword signal and are unusable to screen readers. Add descriptive text or an aria-label.
- [https://vena.pl/henkel/](https://vena.pl/henkel/) — 2 internal link(s) have no anchor text, aria-label, or image alt — they pass no keyword signal and are unusable to screen readers. Add descriptive text or an aria-label.
- [https://vena.pl/jak-tapetowac/](https://vena.pl/jak-tapetowac/) — 2 internal link(s) have no anchor text, aria-label, or image alt — they pass no keyword signal and are unusable to screen readers. Add descriptive text or an aria-label.
- [https://vena.pl/komar/](https://vena.pl/komar/) — 2 internal link(s) have no anchor text, aria-label, or image alt — they pass no keyword signal and are unusable to screen readers. Add descriptive text or an aria-label.
- [https://vena.pl/kontakt/](https://vena.pl/kontakt/) — 2 internal link(s) have no anchor text, aria-label, or image alt — they pass no keyword signal and are unusable to screen readers. Add descriptive text or an aria-label.
- [https://vena.pl/nasza-oferta/](https://vena.pl/nasza-oferta/) — 2 internal link(s) have no anchor text, aria-label, or image alt — they pass no keyword signal and are unusable to screen readers. Add descriptive text or an aria-label.
- [https://vena.pl/palitra/](https://vena.pl/palitra/) — 2 internal link(s) have no anchor text, aria-label, or image alt — they pass no keyword signal and are unusable to screen readers. Add descriptive text or an aria-label.
- [https://vena.pl/przykladowa-strona/](https://vena.pl/przykladowa-strona/) — 2 internal link(s) have no anchor text, aria-label, or image alt — they pass no keyword signal and are unusable to screen readers. Add descriptive text or an aria-label.
- [https://vena.pl/reklamacje/](https://vena.pl/reklamacje/) — 2 internal link(s) have no anchor text, aria-label, or image alt — they pass no keyword signal and are unusable to screen readers. Add descriptive text or an aria-label.
- [https://vena.pl/wizard-and-genius/](https://vena.pl/wizard-and-genius/) — 2 internal link(s) have no anchor text, aria-label, or image alt — they pass no keyword signal and are unusable to screen readers. Add descriptive text or an aria-label.

#### Missing Open Graph tags

- Rule: `og.missing` · Category: Social · Occurrences: 14

- [https://vena.pl/](https://vena.pl/) — og:title, og:description, og:image
- [https://vena.pl/10680-2/](https://vena.pl/10680-2/) — og:title, og:description, og:image
- [https://vena.pl/a-s-creation/](https://vena.pl/a-s-creation/) — og:title, og:description, og:image
- [https://vena.pl/dlaczego-tapety/](https://vena.pl/dlaczego-tapety/) — og:title, og:description, og:image
- [https://vena.pl/grandeco/](https://vena.pl/grandeco/) — og:title, og:description, og:image
- [https://vena.pl/henkel/](https://vena.pl/henkel/) — og:title, og:description, og:image
- [https://vena.pl/jak-tapetowac/](https://vena.pl/jak-tapetowac/) — og:title, og:description, og:image
- [https://vena.pl/komar/](https://vena.pl/komar/) — og:title, og:description, og:image
- [https://vena.pl/kontakt/](https://vena.pl/kontakt/) — og:title, og:description, og:image
- [https://vena.pl/nasza-oferta/](https://vena.pl/nasza-oferta/) — og:title, og:description, og:image
- [https://vena.pl/palitra/](https://vena.pl/palitra/) — og:title, og:description, og:image
- [https://vena.pl/przykladowa-strona/](https://vena.pl/przykladowa-strona/) — og:title, og:description, og:image
- [https://vena.pl/reklamacje/](https://vena.pl/reklamacje/) — og:title, og:description, og:image
- [https://vena.pl/wizard-and-genius/](https://vena.pl/wizard-and-genius/) — 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: 14

- [https://vena.pl/](https://vena.pl/) — 37 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://vena.pl/10680-2/](https://vena.pl/10680-2/) — 4 image(s) use a legacy format (jpg/png/gif) with no next-gen <picture> fallback. Serve WebP or AVIF (with a <picture> typed <source>) to cut image transfer weight and improve LCP.
- [https://vena.pl/a-s-creation/](https://vena.pl/a-s-creation/) — 29 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://vena.pl/dlaczego-tapety/](https://vena.pl/dlaczego-tapety/) — 3 image(s) use a legacy format (jpg/png/gif) with no next-gen <picture> fallback. Serve WebP or AVIF (with a <picture> typed <source>) to cut image transfer weight and improve LCP.
- [https://vena.pl/grandeco/](https://vena.pl/grandeco/) — 37 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://vena.pl/henkel/](https://vena.pl/henkel/) — 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://vena.pl/jak-tapetowac/](https://vena.pl/jak-tapetowac/) — 3 image(s) use a legacy format (jpg/png/gif) with no next-gen <picture> fallback. Serve WebP or AVIF (with a <picture> typed <source>) to cut image transfer weight and improve LCP.
- [https://vena.pl/komar/](https://vena.pl/komar/) — 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://vena.pl/kontakt/](https://vena.pl/kontakt/) — 4 image(s) use a legacy format (jpg/png/gif) with no next-gen <picture> fallback. Serve WebP or AVIF (with a <picture> typed <source>) to cut image transfer weight and improve LCP.
- [https://vena.pl/nasza-oferta/](https://vena.pl/nasza-oferta/) — 48 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://vena.pl/palitra/](https://vena.pl/palitra/) — 3 image(s) use a legacy format (jpg/png/gif) with no next-gen <picture> fallback. Serve WebP or AVIF (with a <picture> typed <source>) to cut image transfer weight and improve LCP.
- [https://vena.pl/przykladowa-strona/](https://vena.pl/przykladowa-strona/) — 3 image(s) use a legacy format (jpg/png/gif) with no next-gen <picture> fallback. Serve WebP or AVIF (with a <picture> typed <source>) to cut image transfer weight and improve LCP.
- [https://vena.pl/reklamacje/](https://vena.pl/reklamacje/) — 3 image(s) use a legacy format (jpg/png/gif) with no next-gen <picture> fallback. Serve WebP or AVIF (with a <picture> typed <source>) to cut image transfer weight and improve LCP.
- [https://vena.pl/wizard-and-genius/](https://vena.pl/wizard-and-genius/) — 3 image(s) use a legacy format (jpg/png/gif) with no next-gen <picture> fallback. Serve WebP or AVIF (with a <picture> typed <source>) to cut image transfer weight and improve LCP.

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

- Rule: `perf.no_last_modified` · Category: Performance · Occurrences: 14

- [https://vena.pl/](https://vena.pl/) — 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://vena.pl/10680-2/](https://vena.pl/10680-2/) — 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://vena.pl/a-s-creation/](https://vena.pl/a-s-creation/) — 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://vena.pl/dlaczego-tapety/](https://vena.pl/dlaczego-tapety/) — 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://vena.pl/grandeco/](https://vena.pl/grandeco/) — 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://vena.pl/henkel/](https://vena.pl/henkel/) — 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://vena.pl/jak-tapetowac/](https://vena.pl/jak-tapetowac/) — 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://vena.pl/komar/](https://vena.pl/komar/) — 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://vena.pl/kontakt/](https://vena.pl/kontakt/) — 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://vena.pl/nasza-oferta/](https://vena.pl/nasza-oferta/) — 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://vena.pl/palitra/](https://vena.pl/palitra/) — 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://vena.pl/przykladowa-strona/](https://vena.pl/przykladowa-strona/) — 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://vena.pl/reklamacje/](https://vena.pl/reklamacje/) — 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://vena.pl/wizard-and-genius/](https://vena.pl/wizard-and-genius/) — the response carries no Last-Modified header — Googlebot can't send an If-Modified-Since request, so it re-downloads the full page body on every crawl even when nothing changed. Emit Last-Modified (or an ETag) on stable pages to enable 304 Not Modified responses.

#### Slow server response

- Rule: `perf.slow_response` · Category: Performance · Occurrences: 3

- [https://vena.pl/palitra/](https://vena.pl/palitra/) — 22214 ms
- [https://vena.pl/przykladowa-strona/](https://vena.pl/przykladowa-strona/) — 21758 ms
- [https://vena.pl/wizard-and-genius/](https://vena.pl/wizard-and-genius/) — 10657 ms

#### No structured data detected

- Rule: `schema.none` · Category: Structured Data · Occurrences: 14

- [https://vena.pl/](https://vena.pl/)
- [https://vena.pl/10680-2/](https://vena.pl/10680-2/)
- [https://vena.pl/a-s-creation/](https://vena.pl/a-s-creation/)
- [https://vena.pl/dlaczego-tapety/](https://vena.pl/dlaczego-tapety/)
- [https://vena.pl/grandeco/](https://vena.pl/grandeco/)
- [https://vena.pl/henkel/](https://vena.pl/henkel/)
- [https://vena.pl/jak-tapetowac/](https://vena.pl/jak-tapetowac/)
- [https://vena.pl/komar/](https://vena.pl/komar/)
- [https://vena.pl/kontakt/](https://vena.pl/kontakt/)
- [https://vena.pl/nasza-oferta/](https://vena.pl/nasza-oferta/)
- [https://vena.pl/palitra/](https://vena.pl/palitra/)
- [https://vena.pl/przykladowa-strona/](https://vena.pl/przykladowa-strona/)
- [https://vena.pl/reklamacje/](https://vena.pl/reklamacje/)
- [https://vena.pl/wizard-and-genius/](https://vena.pl/wizard-and-genius/)

#### Missing recommended security headers

- Rule: `security.missing_headers` · Category: Security · Occurrences: 14

- [https://vena.pl/](https://vena.pl/) — X-Content-Type-Options, HSTS, CSP
- [https://vena.pl/10680-2/](https://vena.pl/10680-2/) — HSTS, CSP, X-Content-Type-Options
- [https://vena.pl/a-s-creation/](https://vena.pl/a-s-creation/) — HSTS, CSP, X-Content-Type-Options
- [https://vena.pl/dlaczego-tapety/](https://vena.pl/dlaczego-tapety/) — HSTS, CSP, X-Content-Type-Options
- [https://vena.pl/grandeco/](https://vena.pl/grandeco/) — HSTS, CSP, X-Content-Type-Options
- [https://vena.pl/henkel/](https://vena.pl/henkel/) — HSTS, CSP, X-Content-Type-Options
- [https://vena.pl/jak-tapetowac/](https://vena.pl/jak-tapetowac/) — HSTS, CSP, X-Content-Type-Options
- [https://vena.pl/komar/](https://vena.pl/komar/) — HSTS, CSP, X-Content-Type-Options
- [https://vena.pl/kontakt/](https://vena.pl/kontakt/) — X-Content-Type-Options, HSTS, CSP
- [https://vena.pl/nasza-oferta/](https://vena.pl/nasza-oferta/) — HSTS, CSP, X-Content-Type-Options
- [https://vena.pl/palitra/](https://vena.pl/palitra/) — HSTS, CSP, X-Content-Type-Options
- [https://vena.pl/przykladowa-strona/](https://vena.pl/przykladowa-strona/) — HSTS, CSP, X-Content-Type-Options
- [https://vena.pl/reklamacje/](https://vena.pl/reklamacje/) — HSTS, CSP, X-Content-Type-Options
- [https://vena.pl/wizard-and-genius/](https://vena.pl/wizard-and-genius/) — X-Content-Type-Options, HSTS, CSP

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

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

- [https://vena.pl/](https://vena.pl/) — 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://vena.pl/komar/](https://vena.pl/komar/) — 3 external link(s) use target="_blank" without rel="noopener" — the opened page can hijack your tab (reverse tab-napping). Add rel="noopener noreferrer".

#### Missing Twitter Card tag

- Rule: `twitter.missing` · Category: Social · Occurrences: 14

- [https://vena.pl/](https://vena.pl/)
- [https://vena.pl/10680-2/](https://vena.pl/10680-2/)
- [https://vena.pl/a-s-creation/](https://vena.pl/a-s-creation/)
- [https://vena.pl/dlaczego-tapety/](https://vena.pl/dlaczego-tapety/)
- [https://vena.pl/grandeco/](https://vena.pl/grandeco/)
- [https://vena.pl/henkel/](https://vena.pl/henkel/)
- [https://vena.pl/jak-tapetowac/](https://vena.pl/jak-tapetowac/)
- [https://vena.pl/komar/](https://vena.pl/komar/)
- [https://vena.pl/kontakt/](https://vena.pl/kontakt/)
- [https://vena.pl/nasza-oferta/](https://vena.pl/nasza-oferta/)
- [https://vena.pl/palitra/](https://vena.pl/palitra/)
- [https://vena.pl/przykladowa-strona/](https://vena.pl/przykladowa-strona/)
- [https://vena.pl/reklamacje/](https://vena.pl/reklamacje/)
- [https://vena.pl/wizard-and-genius/](https://vena.pl/wizard-and-genius/)

## Checks & coverage

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

- ✗ Agent Readiness — 14 warning(s), 18 notice(s)
- ✓ AI Content — clean
- ✓ Amp — clean
- ✓ Budget — clean
- ✓ Cache — clean
- ✓ Canonical — clean
- ✗ Content — 7 warning(s), 14 notice(s)
- ✗ Crawlability — 1 warning(s)
- ✓ Duplicate — clean
- ✓ Geo — clean
- ✗ Headings — 13 warning(s)
- ✓ Hreflang — clean
- ✗ Images — 16 notice(s)
- ✓ Indexability — clean
- ✗ Links — 14 notice(s)
- ✗ Meta Description — 14 warning(s)
- ✓ Mobile — clean
- ✗ Performance — 14 warning(s), 32 notice(s)
- ✓ Rendering — clean
- ✓ Robots — clean
- ✗ Security — 16 notice(s)
- ✓ Sitemap — clean
- ✗ Social — 28 notice(s)
- ✗ Structured Data — 14 notice(s)
- ✓ Titles — clean
- ✓ URL — clean
- ✓ Video — clean

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

## 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