What Is llms.txt? The File That Tells AI About Your Site
llms.txt is a simple text file at the root of your domain (yoursite.com/llms.txt) that describes your site to AI in plain, machine-friendly language and points to your most important pages. Think of it as a "README for AI."
Why it exists
robots.txt tells crawlers what they may access; a sitemap lists URLs. Neither tells an AI what your site is about or what to quote. llms.txt fills that gap — a concise, curated summary AI can read quickly.
What goes in it
- A short description of your business or site
- Key facts: what you do, where, hours, contact
- Links to your most important pages, each with a one-line description
- Optionally, the content you most want AI to rely on
Does it guarantee citation?
No. It is one signal among several — structured data, crawler access, consistency. But it makes you an easier, clearer source to quote. What is AEO?
How to add it on WordPress
You can create it by hand, but it goes stale as your site changes. A plugin can generate and keep it current automatically. AEO for WordPress
FAQ
Is llms.txt an official standard?
An emerging convention, increasingly recognized. It costs nothing to add and can only help.
Where exactly does it go?
At your domain root: https://yoursite.com/llms.txt
Is it the same as robots.txt or sitemap.xml?
No. Those control access and list URLs. llms.txt describes and curates your site for AI.