Apex domains cannot have CNAME records.
Question and response
Question
dig atlanticcoastgeorgia.com. NS
Answer
atlanticcoastgeorgia.com. 3 NS ns-1318.awsdns-36.org.
atlanticcoastgeorgia.com. 3 NS ns-128.awsdns-16.com.
atlanticcoastgeorgia.com. 3 NS ns-295.awsdns-36.com.
atlanticcoastgeorgia.com. 3 NS ns-1692.awsdns-19.co.uk.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0