Apex domains cannot have CNAME records.
Question and response
Question
dig fregiere.com. NS
Answer
fregiere.com. 5 NS ns-1092.awsdns-08.org.
fregiere.com. 5 NS ns-1192.awsdns-21.org.
fregiere.com. 5 NS ns-1454.awsdns-53.org.
fregiere.com. 5 NS ns-602.awsdns-11.net.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0