7f75e41d523fdf2a705498207b89dd25.fec5997c620778d862c266e4d21b5fd9.716160634.sectigo.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 7f75e41d523fdf2a705498207b89dd25.fec5997c620778d862c266e4d21b5fd9.716160634.sectigo.com is not the root of its zone.
Instead, try zone transfer on sectigo.com .