Apex domains cannot have CNAME records.
Question and response
Question
dig vexontrix.org. NS
Answer
vexontrix.org. 3 NS ns-847.awsdns-41.net.
vexontrix.org. 3 NS ns-984.awsdns-59.net.
vexontrix.org. 3 NS ns-884.awsdns-46.net.
vexontrix.org. 3 NS ns-2032.awsdns-62.co.uk.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0