Apex domains cannot have CNAME records.
Question and response
Question
dig netnation.com. NS
Answer
netnation.com. 5 NS ns2.netnation.com.
netnation.com. 5 NS ns1.netnation.com.
Authority
The response has no authority records.
Additional
ns1.netnation.com. 5 A 64.41.112.24
ns2.netnation.com. 5 A 64.41.114.24
ns1.netnation.com. 5 AAAA 2606:7e00:4:0:0:0:0:18
ns2.netnation.com. 5 AAAA 2606:7e00:6:0:0:0:0:18
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0