llms.txt: The File That Tells AI Who You Are (Setup Guide)
llms.txt is the new robots.txt for AI. Learn how to create and optimize this file so AI systems accurately represent your business.
What Is llms.txt?
llms.txt is a plain text file placed at the root of your website (e.g., yoursite.com/llms.txt) that provides AI systems with structured information about your business.
Think of it as robots.txt for AI recommendation engines. While robots.txt tells search engines what to crawl, llms.txt tells AI systems what your business is and how to accurately describe it.
Why You Need llms.txt
Without llms.txt, AI systems have to figure out your business from unstructured web content. This leads to:
With llms.txt, you control the narrative. You tell AI exactly:
How to Create llms.txt
Create a file called llms.txt at your website root with this structure:
For a Medical Practice:
# [Clinic Name]
About
[2-3 sentence description of your practice]
Location
[Full address]
[City, State, PIN]
[Country]
Services
Credentials
Contact
Phone: [number]
Email: [email]
Website: [URL]
Key Facts
Best Practices
1. Keep it concise — AI systems prefer brief, factual content
2. Update regularly — refresh whenever services or credentials change
3. Include differentiators — what makes you unique vs competitors
4. Add authoritative claims — ratings, review counts, certifications
5. Use structured sections — headers and bullet points, not paragraphs
Does It Actually Work?
Yes. AI systems including ChatGPT and Perplexity are increasingly checking for llms.txt as a trust signal. Websites with llms.txt are more accurately represented in AI responses.
It takes 15 minutes to set up and can be the difference between being recommended and being invisible.
Check Your AI Visibility Now
Free audit in 30 seconds. See what AI sees about your business.
Get Free AI Audit →