LLMs.txt Validator

Ship an llms.txt that AI engines will trust.

We fetch your published llms.txt, validate the syntax against the community spec, and check every link is reachable and crawlable.

  • Free to run
  • No account required
  • Live results
  • Evidence-backed
LLMs.txt Validator
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yourbrand.com · llms.txt validatorwaiting
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How it works

From URL to evidence-backed result.

  1. Fetch /llms.txt

    Follow redirects and verify HTTPS delivery.

  2. Parse and validate

    Check headings, sections and markdown structure.

  3. Verify links

    Resolve every URL and check crawlability.

What you get

Built for AI search visibility.

Spec-compliant

Enforces the community llms.txt standard used by leading AI engines.

Full link coverage

Every URL is resolved and tested for HTTPS + crawlability.

Plain-English fixes

Clear recommendations for every warning or error we find.

FAQ

Questions, answered.

Where should llms.txt live?+

Publish at the root of your domain — /llms.txt — so AI engines can find it deterministically.

What if I have no llms.txt yet?+

Use the LLMs.txt Generator first — it drafts one from your live site in seconds.

Reflyma

Track your brand across ChatGPT, Gemini, Perplexity and Claude.