Apex domains cannot have CNAME records.
Question and response
Question
dig enhance3022.com. NS
Answer
enhance3022.com. 5 NS ns-958.awsdns-55.net.
enhance3022.com. 5 NS ns-1827.awsdns-36.co.uk.
enhance3022.com. 5 NS ns-1989.awsdns-56.co.uk.
enhance3022.com. 5 NS ns-822.awsdns-38.net.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0