Apex domains cannot have CNAME records.
Question and response
Question
dig infosentials.com. NS
Answer
infosentials.com. 4 NS ns-1785.awsdns-31.co.uk.
infosentials.com. 4 NS ns-1296.awsdns-34.org.
infosentials.com. 4 NS ns-1031.awsdns-00.org.
infosentials.com. 4 NS ns-1044.awsdns-02.org.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0