Apex domains cannot have CNAME records.
Question and response
Question
dig jobvite.com. NS
Answer
jobvite.com. 4 NS ns-1989.awsdns-56.co.uk.
jobvite.com. 4 NS ns-231.awsdns-28.com.
jobvite.com. 4 NS ns-849.awsdns-42.net.
jobvite.com. 4 NS ns-1085.awsdns-07.org.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0