Can anyone please help me re: NIP05 question?

I have my NIP05 from @npub128q9nu7vrqpfjllpcnnq6cc4cgs8ngp9sge9v9s2c7lur098ctts99gupa 's free service.

and it shows me as having a purple checkmark on Snort but I don't have the green "SethZero1@BitcoinNostr.com" below my username in Iris (and in my settings it says)

"nip05valid: false".

I have shared relays in both, if that makes a difference and it's been plenty of time to propagate. Am I missing something?

Also, how can you tell that someone has NIP05 activated in Amethyst? I see no differentiation.

Thanks for your replies, frens.🙏