5B18AA434331C517903D3607818360D9.31B40A1110FA7823E9069CDA9BA90594.HKFyTOFvYdH2QdbeJxzB.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 5B18AA434331C517903D3607818360D9.31B40A1110FA7823E9069CDA9BA90594.HKFyTOFvYdH2QdbeJxzB.sectigo.com is not the root of its zone.
Instead, try zone transfer on sectigo.com .