F5D325424825993750968AED663EB81A.1A9353E6F389ECEF991C8AB1EF371310.833577311.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 F5D325424825993750968AED663EB81A.1A9353E6F389ECEF991C8AB1EF371310.833577311.sectigo.com is not the root of its zone.
Instead, try zone transfer on sectigo.com .