A pointer at the root
/llms.txtThe file an assistant reads first to find out where a business's own account of itself lives. Without it, anything that does not already know the /.well-known convention has nowhere obvious to start.
Free · read-only · nothing to sign up for
Enter a domain. This fetches the documents an AI system looks for when someone asks it about a company, and reports what came back — with the URL and the HTTP status behind every line, so you can open the same address and see the same thing. If a check cannot complete, it says so. It never reports a document as missing because the request failed.
Enter a domain to see what an AI assistant finds when it goes looking for that business. The result appears here with the URL and status behind every line, so you can repeat any of it in a browser.
What it looks for
/llms.txtThe file an assistant reads first to find out where a business's own account of itself lives. Without it, anything that does not already know the /.well-known convention has nowhere obvious to start.
/.well-known/ard.jsonA structured statement of what the business is, at a path agents and crawlers already check. Marketing copy describes a business to a person; this describes it to software.
/.well-known/business-capabilities.jsonThe services, stated as data with the page each claim came from. Without it, an assistant has to infer the offering from page text and will sometimes infer wrong.
/.well-known/agent-interaction.jsonA published contract saying what an agent may ask, and what the business will never let it do — quote, book, confirm a date, or commit anything. Most businesses have a phone number for a person and nothing for software.
The rules this check runs under
This tool makes statements about other people's websites, which is a thing worth being careful about. These constraints are in the code, not in a disclaimer, and the check publishes them with every result.
“You have no llms.txt” when the request timed out is a false statement about someone's property. Unreachable sites get no score at all.
Every finding names the URL fetched and the status returned. If you cannot repeat it in a browser, it is not reported.
A path your site disallows is not fetched, and is reported as unchecked rather than absent.
No opinion on your design, your copy, your marketing or your search rankings. It measures whether four documents exist, and nothing else.
If the check found gaps, they are the assignment — not a verdict on the business.