cns2.clearfly.net has no CNAME records.
Question and response
Question
dig cns2.clearfly.net. NS
Answer
The response has no answer records.
Authority
clearfly.net. 1573 SOA georgia.ns.cloudflare.com. dns.cloudflare.com. 2396699710 10000 2400 604800 1800
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0