Apex domains cannot have CNAME records.
Question and response
Question
dig maringrizzlies.org. NS
Answer
maringrizzlies.org. 5 NS ns-319.awsdns-39.com.
maringrizzlies.org. 5 NS ns-1927.awsdns-48.co.uk.
maringrizzlies.org. 5 NS ns-673.awsdns-20.net.
maringrizzlies.org. 5 NS ns-539.awsdns-03.net.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0