WoT Protected NIP-05 means you your pubkey must reach a certain amount of WoT rank to be eligible to get a NIP-05 handle. So, it means anyone with a @nostr.eco NIP-05 have that amount of WoT rank at least. Which gives more credit to user.

For your case, you have your own domain which is always a better option. If people know you with that domain.

You can use relay service independently without using other services from us. 🪼🫡❤️