tbz7.loudclick.net has no CNAME records.
Question and response
Question
dig tbz7.loudclick.net. NS
Answer
The response has no answer records.
Authority
loudclick.net. 921 SOA ivan.ns.cloudflare.com. dns.cloudflare.com. 2398551583 10000 2400 604800 1800
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0