llms.txt Checker
Find a site’s /llms.txt and /llms-full.txt and check the title, summary and links that language models use to understand it.
Why it matters
llms.txt is a proposed standard that gives AI tools a clean, Markdown summary of your site and its key pages. It costs minutes to add and makes your site easier for LLMs to understand.
How to use the llms.txt Checker
- Enter a URL Type the page or domain you want to check.
- Run the check We fetch it live, the way a crawler does.
- Fix what you find Each issue comes with a plain-English fix.
Frequently asked questions
Is llms.txt an official standard?
It is a community proposal, not an official standard. Support is growing, and it is a low-effort way to describe your site for AI tools.
Does llms.txt replace robots.txt or a sitemap?
No. robots.txt controls access, the sitemap lists URLs for search engines, and llms.txt summarises your content for language models.