Apex domains cannot have CNAME records.
Question and response
Question
dig qcnscruise.com. NS
Answer
qcnscruise.com. 5 NS ns-1061.awsdns-04.org.
qcnscruise.com. 5 NS ns-1541.awsdns-00.co.uk.
qcnscruise.com. 5 NS ns-123.awsdns-15.com.
qcnscruise.com. 5 NS ns-912.awsdns-50.net.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0