Apex domains cannot have CNAME records.
Question and response
Question
dig arteforkoroseal.com. NS
Answer
arteforkoroseal.com. 5 NS ns-1043.awsdns-02.org.
arteforkoroseal.com. 5 NS ns-1771.awsdns-29.co.uk.
arteforkoroseal.com. 5 NS ns-84.awsdns-10.com.
arteforkoroseal.com. 5 NS ns-521.awsdns-01.net.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0