llms.txt
llms.txt is a proposed convention for a markdown file at a site's root that gives AI systems a curated, token-efficient map of the site's most useful content.
Borrowing the placement idea from robots.txt, llms.txt offers content rather than restricting access: an H1 name, a one-line summary, and sections of annotated links. The intent is to help language models find and use a site's best material without parsing navigation and boilerplate.
It is a community proposal, not a standard, and adoption by AI crawlers varies and is hard to verify. There is no evidence it affects rankings, so it is best treated as a low-cost, low-certainty bet — and the exercise of curating your best pages is useful regardless.
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