Nip-05 allows you to claim unique identity in order to differentiate from imposers. It is not mandatory though some services provide a free nip 05 adress
Discussion
nostr:npub18ams6ewn5aj2n3wt2qawzglx9mr4nzksxhvrdc4gzrecw7n5tvjqctp424 is this something you can help with? Not sure if you still provide Nip-05s.
Yep. Nostrplebs.com the original and largest Nostr address provider. I think the question has been answered, but if anymore exist let me know.