Apex domains cannot have CNAME records.
Question and response
Question
dig raptorssa.com. NS
Answer
raptorssa.com. 5 NS ns-182.awsdns-22.com.
raptorssa.com. 5 NS ns-319.awsdns-39.com.
raptorssa.com. 5 NS ns-1506.awsdns-60.org.
raptorssa.com. 5 NS ns-170.awsdns-21.com.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0