ns2.4everdns.com has no CNAME records.
Question and response
Question
dig ns2.4everdns.com. NS
Answer
The response has no answer records.
Authority
4everdns.com. 152 SOA dns.bizcn.com. abuse.bizcn.com. 2111 28800 14400 14400 600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0