Missing SOA record for backname.io

[OrchidLuna]

Hello, i'm testing your service for TLS certificate issuance with google trust in certbot, i keep having failed to perform CAA check due to internal error. My main suspicion is that although your dns server doesn't send anything when queried for CAA record as usual, but it doesn't return an SOA record alongside it, which ACME clients I think have strict checks for. Could you make sure SOA record on backname.io gets returned properly when queried for any nonexistent records? I don't even see any SOA record when querying it. For additional context, when i removed my IP subdomain of backname.io from the certbot command, certbot is able to get a certificate from google trust just fine.