insights.buzzback.com has no CNAME records.
Question and response
Question
dig insights.buzzback.com. NS
Answer
The response has no answer records.
Authority
buzzback.com. 3600 SOA ns51.domaincontrol.com. dns.jomax.net. 2026021200 28800 7200 604800 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0