Apex domains cannot have CNAME records.
Question and response
Question
dig developcommonground.com. NS
Answer
developcommonground.com. 5 NS ns-1406.awsdns-47.org.
developcommonground.com. 5 NS ns-1083.awsdns-07.org.
developcommonground.com. 5 NS ns-76.awsdns-09.com.
developcommonground.com. 5 NS ns-1035.awsdns-01.org.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0