vps5-net000.sfc.keio.ac.jp 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 vps5-net000.sfc.keio.ac.jp is not the root of its zone.
Instead, try zone transfer on sfc.keio.ac.jp .