Don't ₿elieve the Hype 🦊 on Nostr: Its a nip05. Primal gives them out to it's users. But the main idea is that you can ...

Its a nip05. Primal gives them out to it's users. But the main idea is that you can host your nip05 address yourself on a domain you have access to. Kind of proofing that you belong to a company/website/etc. You don't really "need" it. There's some services, free and paid that you can sign up for tho.