ns2.cbncloud.net has no CNAME records.
Question and response
Question
dig ns2.cbncloud.net. NS
Answer
The response has no answer records.
Authority
cbncloud.net. 3300 SOA ns1.cbncloud.net. domain.cbncloud.co.id. 2026012901 28800 7200 604800 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0