How can I get my custom GPT to show my website instead of my name?

I read a bunch of articles about modifying your builder profile, but I cannot uncheck the button for my name, and there is no button to use my custom website.

This is what I see when I try to uncheck my name.

The website you have needs to be verified. You’ll have to remove all the domains, and go through the process of adding a domain, getting the TXT record to place in DNS, wait for it to propagate ~10+ minutes after saved in DNS records (depending on DNS TTL settings), and then press the button to verify the record to prove domain ownership.

Thanks! Will try this out!
I didn’t realize the verification disappeared / never happened