how about publishing name@domain on nostr event instead of dns nip-05?

Current flow is

1. Hit the dns server
2. Get npub / relay

What if dns server died?

I suggest

1. Client req sign abount name@domain
2. Server sign it (with https cert)
3. Publish replaceable event that npub has it (name@domain)

So client can find profile using profile focused relay even when nip-05 dns server died