Apex domains cannot have CNAME records.
Question and response
Question
dig conceptbusinessfurnishings.com. NS
Answer
conceptbusinessfurnishings.com. 5 NS ns1.conceptbusinessfurnishings.com.
conceptbusinessfurnishings.com. 5 NS ns2.conceptbusinessfurnishings.com.
Authority
The response has no authority records.
Additional
ns1.conceptbusinessfurnishings.com. 5 A 51.210.11.229
ns2.conceptbusinessfurnishings.com. 5 A 46.105.61.127
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0