robots.txt declares your sitemap

What this check means

Checks that robots.txt contains a Sitemap: line pointing at your sitemap.

Why it matters

robots.txt is the first file a crawler reads, and the Sitemap: line is the standard way to hand it your full page list. Relying on the conventional /sitemap.xml path works only for crawlers that guess.

How we detect it

We look for at least one Sitemap: directive in robots.txt.

How to fix it

Add a "Sitemap: https://yourdomain.com/sitemap.xml" line to robots.txt.

Check whether this applies to your site.

Run an AI audit

Other AI Discovery checks

llms.txt is reachable
llms.txt follows the spec
llms.txt lists enough entry points
llms.txt is lightweight
llms-full.txt companion is published