Apex domains cannot have CNAME records.
Question and response
Question
dig orionondemand.com. NS
Answer
orionondemand.com. 5 NS ns-274.awsdns-34.com.
orionondemand.com. 5 NS ns-1351.awsdns-40.org.
orionondemand.com. 5 NS ns-559.awsdns-05.net.
orionondemand.com. 5 NS ns-1629.awsdns-11.co.uk.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0