Apex domains cannot have CNAME records.
Question and response
Question
dig agiloft.com. NS
Answer
agiloft.com. 5 NS ns-279.awsdns-34.com.
agiloft.com. 5 NS ns-936.awsdns-53.net.
agiloft.com. 5 NS ns-1030.awsdns-00.org.
agiloft.com. 5 NS ns-1727.awsdns-23.co.uk.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0