56e20a69e2328f2b2786929e8a8026b1.1018ea2ae73fc2cf515afb39cf0ff310.918649896.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 56e20a69e2328f2b2786929e8a8026b1.1018ea2ae73fc2cf515afb39cf0ff310.918649896.sectigo.com is not the root of its zone.
Instead, try zone transfer on sectigo.com .