Apex domains cannot have CNAME records.
Question and response
Question
dig cleancorporatecomic.com. NS
Answer
cleancorporatecomic.com. 5 NS ns-1150.awsdns-15.org.
cleancorporatecomic.com. 5 NS ns-779.awsdns-33.net.
cleancorporatecomic.com. 5 NS ns-708.awsdns-24.net.
cleancorporatecomic.com. 5 NS ns-818.awsdns-38.net.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0