What is llms.txt?
llms.txt is a plain text file placed at your domain root (like robots.txt) that provides AI language models with structured information about your website, product, or service.
Format: Markdown-like plain text with your brand name, description, key features, pricing, and links to important pages. llms-full.txt is the extended version with comprehensive details.
Purpose: Helps AI models accurately describe your product when users ask about it. Without llms.txt, AI systems may hallucinate or provide incomplete information.
Adoption is growing rapidly as more companies recognize the importance of controlling their narrative in AI search results. Vantacron checks for llms.txt as part of its AI Search Score audit.
Example
When ChatGPT is asked about your product but doesn't have accurate information, it may guess or provide outdated details. With llms.txt, the AI can pull accurate facts directly.