_064491da807533dfa0bc0286ce37371a.builder.nu 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 _064491da807533dfa0bc0286ce37371a.builder.nu is not the root of its zone.
Instead, try zone transfer on sectigo.com .