43F199B42539A9F7CCE1378DCF691154.5ACAC641665EC457D61503E05202F970.64897446aa61d.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 43F199B42539A9F7CCE1378DCF691154.5ACAC641665EC457D61503E05202F970.64897446aa61d.sectigo.com is not the root of its zone.
Instead, try zone transfer on sectigo.com .