Sovereign Matt on Nostr: If you have a domain that you own, all you need to do is drop your hex key and handle ...

If you have a domain that you own, all you need to do is drop your hex key and handle in a file on your site

https://thebitcoinmanual.com/articles/nostr-account-nip-05-verified/

If you don't have your own domain, you can use one of these services:

http://nostrplebs.com
http://nostrverified.com
http://getalby.com