Guides › llms.txt: what it is and how to add one
llms.txt: what it is and how to add one
What an llms.txt file is, what it can and can't do for AI visibility, and a simple template you can publish on your site in a few minutes.
The short version
- llms.txt is a plain-text file at your site's root that summarises your business for AI tools.
- It is a proposed convention; major engines have not said they rely on it.
- It takes minutes to add and can't hurt, so it is worth doing after the basics.
- robots.txt, structured data and good pages matter more.
What it is
llms.txt is a Markdown file published at yourdomain.com/llms.txt. It was proposed in 2024 as a simple way for a site to give AI tools a short, clean summary of what it is and links to its most important pages, without the navigation, scripts and layout of a normal web page.
What it can and can't do
Be realistic. It is a proposal, not a standard the big assistants have said they use. Adding it will not make ChatGPT recommend you. What it does is give any tool that does read it an accurate description in your own words, which costs you a few minutes. Do it after the things that clearly matter: letting crawlers in, structured data, consistent listings and pages that answer questions.
A template for a local business
# Summit Air Systems > Heating and air conditioning repair, installation and > maintenance in Auburn and Placer County, California. ## Services - AC repair and installation: https://example.com/ac-repair - Furnace repair and replacement: https://example.com/furnace - Maintenance plans: https://example.com/maintenance ## Contact - Phone: (555) 010-0000 - Hours: Mon-Sat 7am-7pm - Service area: Auburn, Grass Valley, Roseville
Replace every line with your real details, keep it short, and link to the pages that matter. Then upload it to the root of your site so it opens at /llms.txt.