Score history · 30 checks
Findings
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H1 title present
Title: "llms.txt"
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Blockquote summary present
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1 section(s) with links
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All links reachable
Links
- 200 https://llmstxt.org/index.md
- 200 https://llmstxt.org/intro.html.md
- 200 https://llmstxt.org/ed-commonmark.md
AI discoverability optional · doesn’t affect score
Beyond llms.txt, these companion files help AI tools and search engines understand your site. We only check genuinely adopted ones.
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✓
robots.txt standard /robots.txt
1 Sitemap directive.
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✓
sitemap.xml standard /sitemap.xml
Valid XML sitemap.
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RSS / Atom feed standard /rss.xml
Suggestion: A feed (RSS/Atom) at a common path helps AI tools track fresh content. (May exist via <link rel=alternate>.)
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ads.txt standard /ads.txt
Only needed if the site serves programmatic ads (IAB authorized sellers).
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security.txt standard /.well-known/security.txt
Suggestion: Add /.well-known/security.txt (RFC 9116) with a Contact and Expires field.
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ai.txt informational /ai.txt
Not a formal standard; an opt-in AI-training/usage directive honored only by some actors.
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A2A agent card emerging /.well-known/agent-card.json
Optional: only relevant if the site exposes an AI agent (Google A2A protocol).
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llms.json emerging /llms.json
Optional structured (JSON) manifest some sites add for agents.
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Structured data (JSON-LD) standard homepage
Suggestion: Add schema.org JSON-LD (Organization, WebSite) — this is how AI/knowledge graphs identify a site.
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✓
Open Graph tags standard homepage
Open Graph tags present (controls link previews in AI/social).
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✓
Twitter Card standard homepage
Twitter Card metadata present.
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—
Canonical URL standard homepage
Suggestion: Add a <link rel="canonical"> to consolidate duplicate URLs.
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AI file discovery hints emerging homepage
Suggestion: Add <link rel="alternate" href="/llms.txt"> (and llms-full.txt) in <head> so crawlers discover your AI files.
For brand/identity data, use schema.org Organization JSON-LD embedded in your pages — that’s what knowledge graphs actually read. Files like brand.txt, identity.json or llms.json are vendor inventions with no shared spec, so we don’t check them.
Embed your score
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Markdown
[](https://llms-txt-validator.dev/report?url=llmstxt.org)
HTML
<a href="https://llms-txt-validator.dev/report?url=llmstxt.org"><img src="https://llms-txt-validator.dev/badge/llmstxt.org.svg" alt="llms.txt score"></a>