Apex domains cannot have CNAME records.
Question and response
Question
dig coresidentialremodeling.com. NS
Answer
coresidentialremodeling.com. 5 NS ns-1044.awsdns-02.org.
coresidentialremodeling.com. 5 NS ns-338.awsdns-42.com.
coresidentialremodeling.com. 5 NS ns-859.awsdns-43.net.
coresidentialremodeling.com. 5 NS ns-1686.awsdns-18.co.uk.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0