GLOSSARY TERM
What is llms.txt?
Definition
A proposed standard text file placed at the root of a website (like robots.txt) that provides a concise, markdown-formatted directory of information specifically designed for Large Language Models and AI Answer Engines to read and cite.
Why it Matters for AI Search
As AI search engines like ChatGPT and Perplexity become primary information sources, providing a clean llms.txt file ensures these models understand your site's structure and core content without having to scrape and parse complex HTML. Early adopters report up to 40% more AI citations.
Related Terms
Perplexity AIAnswer Engine Optimization (AEO)robots.txtXML SitemapGenerative Engine Optimization (GEO)Meta Description
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