Apex domains cannot have CNAME records.
Question and response
Question
dig monarchiamatt.com. NS
Answer
monarchiamatt.com. 2 NS ns-981.awsdns-58.net.
monarchiamatt.com. 2 NS ns-1818.awsdns-35.co.uk.
monarchiamatt.com. 2 NS ns-1321.awsdns-37.org.
monarchiamatt.com. 2 NS ns-1848.awsdns-39.co.uk.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0