What llms.txt Is
llms.txt is a proposed standard file, placed at the root of a website (similar in concept to robots.txt), intended to give AI models and crawlers a clear, curated guide to a site's most important content — a structured summary of what the site covers and links to its key pages, formatted specifically to be easy for a language model to parse and use.
Why It Exists
A typical website's navigation and structure is designed for human visitors clicking through a menu, which isn't necessarily the most efficient format for an AI system trying to quickly understand what a site covers and find its most authoritative content on a given topic. llms.txt aims to provide that more directly.
How to Create One
An llms.txt file is a simple, plain-text (usually Markdown-formatted) file listing your site's key sections and pages with brief descriptions, placed at yoursite.com/llms.txt. There's no single enforced format yet since this is an emerging, not universally standardized, convention — but keeping it concise, well-organized, and genuinely descriptive is the general guidance.
Is It Worth Doing Yet?
Adoption and actual usage by major AI crawlers is still evolving, so treat creating an llms.txt file as a low-cost, forward-looking step rather than a guaranteed visibility boost today — it costs little to create and may become more valuable as adoption grows.
Related Pages
Frequently Asked
Is llms.txt an officially recognized web standard?
It's an emerging, community-proposed convention rather than a formally ratified web standard at this point, though it's gaining some adoption.
Do major AI companies confirm they use llms.txt?
Support and actual usage varies and is still evolving; treat it as a low-cost, forward-looking practice rather than a confirmed guaranteed benefit today.
Is llms.txt the same as robots.txt?
No — robots.txt controls crawler access permissions; llms.txt is intended to provide a curated content guide for AI systems, a different purpose entirely.
How long should an llms.txt file be?
Concise and well-organized is generally recommended over exhaustive — it's meant to be a curated guide to your most important content, not a complete site map.