§Definition GEO & AI Search

llms.txt

A proposed site-root file that offers AI systems a curated, plain-text map of your most important content.

ID
SS-DF-106
Confidence
Established · 68
Evidence
Emerging
Updated
2026-07-08

Definition

A proposed site-root file that offers AI systems a curated, plain-text map of your most important content.

llms.txt is an emerging convention: a Markdown file at the root of a domain that lists key pages and clean summaries so language models can find and understand your content without wading through navigation and markup. It aims to do for LLMs what a sitemap and robots file do for crawlers, providing an efficient, AI-friendly overview. Adoption by the major engines is still uneven, so it is best treated as a low-cost, forward-looking signal rather than a guaranteed route to citations today.

Recommended next steps

    See the wider capability Citation Engineering Capability