Apex domains cannot have CNAME records.
Question and response
Question
dig cch.com. NS
Answer
cch.com. 5 NS ns-1769.awsdns-29.co.uk.
cch.com. 5 NS ns-221.awsdns-27.com.
cch.com. 5 NS ns-807.awsdns-36.net.
cch.com. 5 NS ns-1296.awsdns-34.org.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0