DC5CD706CCB6B4D90664406EE59FC108.997A5A673168FCDA74AB4BD000131369.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 DC5CD706CCB6B4D90664406EE59FC108.997A5A673168FCDA74AB4BD000131369.sectigo.com is not the root of its zone.
Instead, try zone transfer on sectigo.com .