What is llms.txt?
llms.txt is a plain-text markdown file at the root of a website that lists the pages its owner wants language models to read first, with a short note on each.
Limelit's free AI Readiness Score checks whether your site serves an llms.txt file; it does not treat the file as a ranking or citation signal.
Definition
llms.txt is a plain-text markdown file at the root of a website that lists the pages its owner wants language models to read first, with a short note on each. llms.txt is an unofficial convention proposed at llmstxt.org, not a standard the AI engines have adopted, and publishing one has no demonstrated effect on how often AI answers cite a site. Limelit publishes its own at limelit.co/llms.txt, and its free AI Readiness Score reports whether your site has one.
More terms
The things people ask us first.
No. llms.txt is an unofficial convention proposed at llmstxt.org, not a standard the AI engines have adopted, and publishing one has no demonstrated effect on how often AI answers cite a site.
No. AI crawlers find pages through your robots.txt rules, your sitemap and your links. Check those first; an llms.txt file is optional on top.
At the root of the site, as /llms.txt, in markdown: a title, a one-line summary, then sections of links with a short note each.
Yes. limelit.co/llms.txt lists Limelit's product pages, metric definitions and articles, and every page it lists is also served as markdown.