1009b8bf-73e9-45ce-b67d-f82c6abb1000.7.authorize.certificatemanager.goog IXFR zone transfer

Changes since SOA version

IXFR is a zone transfer request that returns changes since a specific SOA version. Enter the SOA version to request changes since then.

Not an apex domain The domain 1009b8bf-73e9-45ce-b67d-f82c6abb1000.7.authorize.certificatemanager.goog is not the root of its zone.
Instead, try zone transfer on 7.authorize.certificatemanager.goog .