Yes, there also the option to keep a personal relay locally somewhere just as a backup, using tor or wireguard to expose it.
Remember that you can also broadcast your notes on multiple relays for exactly that reason, when Damus nuked his relay I didn't even noticed, and I haven't lost a single note.
Also, you can also use GitHub Pages for your Nip05, you don't need to buy a domain just for that.
Yes, there also the option to keep a personal relay locally somewhere just as a backup, using tor or wireguard to expose it.
Remember that you can also broadcast your notes on multiple relays for exactly that reason, when Damus nuked his relay I didn't even noticed, and I haven't lost a single note.
Also, you can also use GitHub Pages for your Nip05, you don't need to buy a domain just for that.