45-168-234-18.static.c3ntro.com 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 45-168-234-18.static.c3ntro.com is not the root of its zone.
Instead, try zone transfer on c3ntro.com .