Prove it and keep it fixed
Re-scan, read a signed answer, join the registry.
A fix is only real when a stranger’s request gets the fixed answer. Re-scan from outside your network (never from a logged-in browser, which bypasses most edge rules), and read the signed answer: the record an AI agent gets about your site before it reads, cites or buys. It names who controls the domain, what the site declares, what it actually served and the decision an agent should take.
Then keep it fixed. Sites drift: a plugin update rewrites robots.txt, a firewall rule arrives with a new CDN plan, a directory changes your phone. Joining the registry proves you control the domain with one DNS record or meta tag, so every signed answer says so; monitoring re-reads the site daily and tells you the day a reading moves.
On your own site
Re-scan, read your signed answer, and claim your domain in the registry.