llms.txt for AI assistants

A file at /llms.txt: a short Markdown map of the site written for answer engines and AI assistants, so they describe it from what you wrote rather than from what they inferred. A convention, not a standard — nothing requires it.

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/llms.txt is a proposed convention for helping large language models understand a site. It is a Markdown file in the site root: an H1 with the site name, a one-paragraph summary in a blockquote, then sections of links to the pages that matter, each with a short description. AI assistants and answer engines that read it can describe your site from your own words rather than piecing it together from navigation menus and cookie banners.

It is not a standard, and no search engine has promised to use it — nothing requires it, and the report never treats its absence as a problem. It is cheap to add, though, and a sensible part of AI visibility.

How SiteScan checks

The scan requests /llms.txt without following redirects and counts it as published when the answer is a 200 with a non-empty body that is not HTML or XML — so a single-page app that returns its index for every path is not mistaken for one. When found, the row shows the file size in bytes.

How to write one

Keep it short and current: what the site or product is, who it is for, and links to the key pages (documentation, pricing, contact) with one line each. Serve it as text/plain or text/markdown. For a complete copy of your content in one file, see llms-full.txt.