Apex domains cannot have CNAME records.
Question and response
Question
dig netdesigngroup.com. NS
Answer
netdesigngroup.com. 1 NS beth.ns.cloudflare.com.
netdesigngroup.com. 1 NS johnathan.ns.cloudflare.com.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0