Apex domains cannot have CNAME records.
Question and response
Question
dig renardonline.com. NS
Answer
renardonline.com. 5 NS ns-547.awsdns-04.net.
renardonline.com. 5 NS ns-1652.awsdns-14.co.uk.
renardonline.com. 5 NS ns-1317.awsdns-36.org.
renardonline.com. 5 NS ns-605.awsdns-11.net.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0