54-96-71-77.skynet-bg.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 54-96-71-77.skynet-bg.net is not the root of its zone.
Instead, try zone transfer on skynet-bg.net .