llms.txt
llms.txt is a proposed standard file placed at the root of a website that gives LLMs a curated, markdown-formatted map of the site's most important content.
Updated July 15, 2026
In depth
Modelled on robots.txt and sitemap.xml, llms.txt lists your canonical pages in priority order so AI engines can ingest them efficiently. A companion file, llms-full.txt, contains the full markdown corpus for retrieval-augmented systems.
Related terms