Apex domains cannot have CNAME records.
Question and response
Question
dig dealeronsite.com. NS
Answer
dealeronsite.com. 5 NS ns-953.awsdns-55.net.
dealeronsite.com. 5 NS ns-1672.awsdns-17.co.uk.
dealeronsite.com. 5 NS ns-449.awsdns-56.com.
dealeronsite.com. 5 NS ns-1365.awsdns-42.org.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0