What is llms.txt?

llms.txt is a plain text file at the root of a website (e.g. example.com/llms.txt) that helps AI systems understand and represent your business or project. The specification (v1.1.1) requires: an H1 name, blockquote summary, and Contact section. Recommended sections include Services, Key Information, and AI Discovery Files. Written in Markdown, llms.txt improves how LLMs describe your entity and can enable sitelinks or rich results in AI search interfaces.