XenonFlare

llms.txt checker & generator

Validate or generate llms.txt — the machine-readable index AI crawlers use to discover your site.

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Enter a URL above to run llms.txt checker

Results appear in seconds — no signup, no credit card.

How it works

  1. 1

    Fetch or paste

    Check your live /llms.txt or paste draft content to validate.

  2. 2

    Review structure

    See title, description, and link coverage for AI crawlers.

  3. 3

    Export draft

    Generate a starter llms.txt you can publish at your site root.

What you get

  • Fetch or pastevalidate any public llms.txt URL
  • Link and title validationflag broken references
  • Starter draft exportcopy-ready llms.txt template
  • Copy-ready outputpaste into your site root

Want ongoing monitoring?

Scheduled crawls, AI suggestions, change history, and alerts — create a free workspace and your tool results carry over when you add the same URL.

FAQ

Common questions

What is llms.txt?

llms.txt is a plain-text index at your site root that helps AI crawlers discover key pages, docs, and a short summary of your site.

Can I generate llms.txt here?

Yes. Fetch your live file to validate it, or generate a starter draft when llms.txt is missing — then copy and publish at /llms.txt.

Is the llms.txt checker free?

Yes. Validate or generate drafts without an account. Workspaces alert you when llms.txt goes missing on scheduled crawls.