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 lb-8oc3r1wc-gclv964r7pxtbs3w.clb.th-tencentclb.net is not the root of its zone.
Instead, try zone transfer on th-tencentclb.net .
Instead, try zone transfer on th-tencentclb.net .