Glossary
What Is llms.txt? A Plain-English Guide for Website Owners
The short answer
llms.txt is a plain-text file placed at the root of your website (yoursite.com/llms.txt) that gives AI models like ChatGPT, Claude, and Perplexity a short, clean guide to your most important pages and facts, so they can read and cite your business more accurately.
Here's a quick example for a dental office. The file might say: '# Bright Smile Dental. A family dentist in Austin, TX. Open Mon-Fri 8am-5pm.' Then a few links: '- [Services](/services): cleanings, fillings, whitening. - [Book an appointment](/book): online scheduling. - [Contact](/contact): phone and address.' That's the whole idea. Short, clear, and easy for a model to read.
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