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llms.txt Checker

llms.txt is a proposed Markdown file at the root of a site that gives language models a curated map of its most useful pages. This check fetches /llms.txt and reviews its structure.

Results open in the site's full report, which you can share, compare and re-run.

What it checks

  • Whether /llms.txt exists (HTML error pages are not counted)
  • Required H1 title
  • Optional blockquote summary
  • Number of H2 sections and Markdown links

Frequently asked questions

Do AI search engines read llms.txt?
Support varies and is still emerging. It is cheap to publish and helps any tool that looks for it, but it is not a ranking factor.
Where should the file live?
At the root: https://example.com/llms.txt, served as plain text or Markdown.
How do I create one?
Use the free llms.txt generator: fill in your site name, a summary and your key links.

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