colo-212-045-032-000.solcon.nl 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 colo-212-045-032-000.solcon.nl is not the root of its zone.
Instead, try zone transfer on solcon.nl .