ip-139-20-169-62.static.contabo.net 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 ip-139-20-169-62.static.contabo.net is not the root of its zone.
Instead, try zone transfer on contabo.net .