By Scott Withers, MBA, Founder & Chief AI Officer, CenseoAI
Quick Answer
llms.txt is a plain text file at your website's root (e.g., yoursite.com/llms.txt) that gives AI crawlers a curated summary of your business. Think of it as a resume for AI systems, it tells ChatGPT, Gemini, Perplexity, and other AI tools who you are, what you do, where you operate, and which pages matter most. Without it, AI has to guess.
Why llms.txt Matters
AI systems crawl millions of websites. When they encounter yours, they need to quickly understand what your business is about. Without llms.txt, AI has to piece together information from your entire site, and may get it wrong. With llms.txt, you control the narrative.
What Goes in llms.txt
A well-structured llms.txt includes:
Business Identity
Company name, tagline, what you do.
Location & Service Area
Where you're based and who you serve.
Key Services
Your primary offerings with brief descriptions.
Founder/Team Credentials
Education, experience, certifications.
Important Page Links
URLs to your most important content.
FAQ Section
Common questions and answers about your business.
Contact Information
How to reach you.
llms.txt vs llms-full.txt
The convention includes two files: llms.txt is a concise summary (under 2,000 words), while llms-full.txt provides comprehensive detail. AI systems with token limits use the short version; those that can process more context use the full version.
How to Make AI Crawlers Find It
Place llms.txt at your domain root and reference it in your robots.txt file. Also ensure your robots.txt allows AI crawlers (GPTBot, PerplexityBot, ClaudeBot, etc.) to access it. This is part of a broader GEO (Generative Engine Optimization) strategy.
Real-World Impact
Businesses with llms.txt are more likely to be accurately described and recommended by AI systems. Without it, AI may describe your business incorrectly, recommend competitors instead, or simply not mention you at all. In a local market like Traverse City, this can mean the difference between getting the lead and losing it.
Frequently Asked Questions
What is llms.txt?
llms.txt is a text file placed at the root of your website that provides AI crawlers with a curated summary of your business, who you are, what you do, where you operate, and links to your most important pages.
Is llms.txt the same as robots.txt?
No. robots.txt tells crawlers which pages they can access. llms.txt tells AI systems what your business is about and which content is most important. They serve different purposes and both should be used.
Do I need llms.txt for my business?
If you want AI systems like ChatGPT, Gemini, and Perplexity to understand and recommend your business, yes. llms.txt provides the context AI needs to accurately describe your business.
Can CenseoAI create llms.txt for my business?
Yes. CenseoAI creates custom llms.txt and llms-full.txt files as part of our GEO (Generative Engine Optimization) services for Traverse City businesses.
Want CenseoAI to Create Your llms.txt?
We'll create a custom AI context file that tells AI systems exactly who you are and why they should recommend you.
Schedule a GEO Consultation