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 eb3d9c3f1bdc903712325108feb9dac1.616d6948244edafdba96f46f5b158b8d.t0938483001711603926.sectigo.com is not the root of its zone.
Instead, try zone transfer on sectigo.com .
Instead, try zone transfer on sectigo.com .