Apex domains cannot have CNAME records.
Question and response
Question
dig joyceholms.com. NS
Answer
joyceholms.com. 1 NS ns2.joyceholms.com.
joyceholms.com. 1 NS ns1.joyceholms.com.
Authority
The response has no authority records.
Additional
ns1.joyceholms.com. 1 A 170.130.202.46
ns2.joyceholms.com. 1 A 173.44.158.38
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0