What is llms.txt and Why Your Website Needs One

What is llms.txt and Why Your Website Needs One The llms.txt file is a plain-text file placed at the root of a website that provides AI systems and large language models with a structured, human-readable summary of the site's purpose, products, and key resources. The llms.txt standard was proposed by Jeremy Howard (co-founder of fast.ai) in 2024 as a complement to robots.txt, which tells crawlers what they can access but not what the site is about. While robots.txt controls permissions, llms.txt provides context.