Apex domains cannot have CNAME records.
Question and response
Question
dig services.jamfcloud.com. NS
Answer
services.jamfcloud.com. 4 NS ns-319.awsdns-39.com.
services.jamfcloud.com. 4 NS ns-738.awsdns-28.net.
services.jamfcloud.com. 4 NS ns-1233.awsdns-26.org.
services.jamfcloud.com. 4 NS ns-1735.awsdns-24.co.uk.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0