llms.txt
By BeeRanked · August 6, 2026 · Updated September 12, 2026
llms.txt is a proposed standard: a markdown file at the root of a site that gives large language models a curated, easy-to-read map of your most important content. It was proposed in 2024 by Jeremy Howard (llmstxt.org).
The idea
A normal web page is cluttered with navigation, scripts, and ads that waste an LLM's limited context window. llms.txt offers a clean, linked summary, "here is what this site is, and here are the key pages", so a model can find the good parts fast.
Should you add one?
As of 2026, no major AI provider has publicly committed to reading llms.txt, so treat it as low-cost insurance. It is quick to add and harmless, and it has produced no measurable results yet. In effect it is an early sitemap for LLMs. We go deeper on the trade-offs in llms.txt: what it is, and whether your site needs one.
Sources
Related terms
robots.txt, Answer Engine Optimization, Generative Engine Optimization