4fca8da55b2e463b7b12909dcac53380.994a5d61878caa8f22344dbc2872d0e3.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 4fca8da55b2e463b7b12909dcac53380.994a5d61878caa8f22344dbc2872d0e3.sectigo.com is not the root of its zone.
Instead, try zone transfer on sectigo.com .