03C327BE85F31E3ABF70A98756F99737.06C7E0EE8F5F5B130348959909C902CE.815951195.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 03C327BE85F31E3ABF70A98756F99737.06C7E0EE8F5F5B130348959909C902CE.815951195.sectigo.com is not the root of its zone.
Instead, try zone transfer on sectigo.com .