Apex domains cannot have CNAME records.
Question and response
Question
dig grizzleenterprises.com. NS
Answer
grizzleenterprises.com. 5 NS ns-1987.awsdns-56.co.uk.
grizzleenterprises.com. 5 NS ns-1274.awsdns-31.org.
grizzleenterprises.com. 5 NS ns-378.awsdns-47.com.
grizzleenterprises.com. 5 NS ns-1424.awsdns-50.org.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0