185-112-87-251.ip.cloud-admin.it 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 185-112-87-251.ip.cloud-admin.it is not the root of its zone.
Instead, try zone transfer on cloud-admin.it .