09c0e43150cacb8a63976df66df732c7.4ab8de47511c04a12128eef33fa6a009.919457138.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 09c0e43150cacb8a63976df66df732c7.4ab8de47511c04a12128eef33fa6a009.919457138.sectigo.com is not the root of its zone.
Instead, try zone transfer on sectigo.com .