Apex domains cannot have CNAME records.
Question and response
Question
dig covermodels2.com. NS
Answer
covermodels2.com. 2 NS ns-350.awsdns-43.com.
covermodels2.com. 2 NS ns-1509.awsdns-60.org.
covermodels2.com. 2 NS ns-1428.awsdns-50.org.
covermodels2.com. 2 NS ns-601.awsdns-11.net.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0