Free tool
llms.txt Checker
Paste your llms.txt and we check its shape against the standard: the required name, the summary, and links assistants can actually resolve. Nothing is uploaded.
We read /llms.txt from the domain you enter. Or paste one below.
- Starts with an H1 name.
- Has a blockquote summary.
- Lists 2 linked pages.
- 1 link uses a relative URL. Use absolute https URLs so assistants can resolve them.
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What this means
An llms.txt only helps if an assistant can parse it. The one required line is the H1 name. A blockquote summary and a section of absolute links are what make it useful, because relative links like /services/ cannot be resolved without knowing your domain.
This checks structure, not content. A file can be perfectly formed and still point at the wrong pages. Link the pages that answer real questions, and keep the summaries honest.
Do not have an llms.txt yet? Build one with our llms.txt Generator, then paste it back here to confirm it validates.
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This checked one thing. The full audit checks forty.