F4F67A3C85B50875259D9AC4AE55FA33.51E12CB41E4BF7100E8B80A8E4CD1A80.836362665.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 F4F67A3C85B50875259D9AC4AE55FA33.51E12CB41E4BF7100E8B80A8E4CD1A80.836362665.sectigo.com is not the root of its zone.
Instead, try zone transfer on sectigo.com .