Where to place the llm.txt file for the website?

The llms.txt file should be placed in the root directory of your website, the same location where you'd put robots.txt or sitemap.xml, so it's accessible at yourdomain.com/llms.txt. This is a required convention, not a stylistic choice, because AI crawlers and language model tools are designed to look for the file at that exact root-level path. Placing it in a subdirectory or nesting it inside another folder means most systems looking for it simply won't find it. The file itself is a plain text Markdown document that summarizes your site's content and purpose in a format intended to be easy for AI systems to parse, essentially acting as a curated guide to your most important pages. If you're using a static site generator or CMS, confirm that your deployment process actually publishes the file to the root of the live domain rather than leaving it in a source folder that never gets deployed. Once it's live, you can verify placement simply by visiting the URL directly in a browser to confirm the file loads.