ai51.de

Last checked 9h ago · 8 issues found

82Overall

91Speed

97SEO

68Security

73AI readiness

Speed 1 to fix

!
Meta description
172 characters
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✓
Homepage returns 200
HTTP 200
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Title tag
"ai51 — AI Learning App, Virtual Try-On, AI Headshots & Sales AI" (63 chars)
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One H1 heading
1 H1 tag(s) found.
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Canonical URL
https://ai51.de/
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Page can be indexed
No noindex directive.
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Language declared
lang="en"
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Mobile viewport
Viewport meta tag present.
✓
Social share tags
og:title, og:description, og:image, og:url and og:type set.
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Image alt text
0 of 10 images have no alt attribute.
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Short redirect chain
http://ai51.de/ takes 1 redirect(s): 301 → https://ai51.de/
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Enough content on the page
1085 words of visible text.
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Character encoding
Charset declared in the HTML.
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Favicon
Favicon found.
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X (Twitter) card tags
twitter:card = summary_large_image, image set
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robots.txt
Found at /robots.txt.
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XML sitemap
Found at https://ai51.de/sitemap.xml
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No broken internal links
Checked 1 internal links from the homepage.
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Accessibility
96/100 on Google Lighthouse
✓
Best practices
100/100 on Google Lighthouse

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HSTS header
No strict-transport-security header.
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Content Security Policy
No content-security-policy header.
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Clickjacking protection
Page can be framed by any site.
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Permissions-Policy
No permissions-policy header.
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✓
Served over HTTPS
The homepage loads over HTTPS.
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HTTP redirects to HTTPS
http:// returns 301 to HTTPS.
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X-Content-Type-Options
x-content-type-options: nosniff
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Referrer-Policy
referrer-policy: strict-origin-when-cross-origin
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No mixed content
All resources load over HTTPS.
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Server software not exposed
No software versions in response headers.

✕
AI crawlers not blocked by firewall
Blocked: GPTBot (403), ClaudeBot (403)
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llms.txt file
No /llms.txt file.
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✓
AI crawlers allowed in robots.txt
GPTBot, ClaudeBot, PerplexityBot and others are not blocked.
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Content readable without JavaScript
1085 words in the raw HTML. Most AI crawlers don't run JavaScript.
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Structured data (schema.org)
JSON-LD types: Organization
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Clear page summary
AI answers often reuse your title and meta description to describe you.