Apex domains cannot have CNAME records.
Question and response
Question
dig projectc10.com. NS
Answer
projectc10.com. 5 NS ns-1054.awsdns-03.org.
projectc10.com. 5 NS ns-821.awsdns-38.net.
projectc10.com. 5 NS ns-630.awsdns-14.net.
projectc10.com. 5 NS ns-1227.awsdns-25.org.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0