Apex domains cannot have CNAME records.
Question and response
Question
dig yonjamedia.com. NS
Answer
yonjamedia.com. 5 NS ns-772.awsdns-32.net.
yonjamedia.com. 5 NS ns-1683.awsdns-18.co.uk.
yonjamedia.com. 5 NS ns-116.awsdns-14.com.
yonjamedia.com. 5 NS ns-169.awsdns-21.com.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0