Apex domains cannot have CNAME records.
Question and response
Question
dig businesschristmascards.com. NS
Answer
businesschristmascards.com. 5 NS ns2.acenet.us.
businesschristmascards.com. 5 NS ns1.acenet.us.
businesschristmascards.com. 5 NS ns4.acenet.us.
businesschristmascards.com. 5 NS ns3.acenet.us.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0