Content optimization, briefs, and AI writing scored against what ranks for your keyword.
Full evaluationGlossary · Updated Sep 2, 2026
llms.txt
A proposed plain-text file at a site's root that summarises the site and links key pages for AI assistants and crawlers.
Definition
The llms.txt convention gives language models a curated, markdown-formatted overview of a website, similar in spirit to robots.txt or sitemaps but aimed at comprehension rather than crawling rules. Sites may also publish markdown versions of pages and section-level files. Adoption by AI providers varies, but it costs little to add.
Why it matters when choosing a tool
Publishing llms.txt and clean markdown pages makes it easier for assistants to represent your site accurately.
Where you will meet it
AI SEO & Content Optimization, AI Coding & Development
Related terms
Generative engine optimization (GEO) · AI crawler · Structured data (schema.org)
Tools where this matters
Reviewed products in the related categories
SEO and AI visibility platform powered by proprietary web crawler data
Full evaluation
Search marketing platform for keyword research, competitor analytics, and AI search visibility.
Full evaluation
A thoughtful AI collaborator for writing, analysis, coding, and long-form work.
Full evaluation
An AI-native code editor for repository-aware agents, edits, review, and automation.
Full evaluation
Anthropic's agentic coding tool that works in the terminal, IDE, desktop app, and browser to plan and execute multi-step changes.
Full evaluation