8C145104379EC3168D81C28F146F830D.1FB4ABCB2D446F54C098BBB4C10A3C7D.t0755101001716527550.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 8C145104379EC3168D81C28F146F830D.1FB4ABCB2D446F54C098BBB4C10A3C7D.t0755101001716527550.sectigo.com is not the root of its zone.
Instead, try zone transfer on sectigo.com .