Apex domains cannot have CNAME records.
Question and response
Question
dig influitive.com. NS
Answer
influitive.com. 5 NS ns-684.awsdns-21.net.
influitive.com. 5 NS ns-1354.awsdns-41.org.
influitive.com. 5 NS ns-1937.awsdns-50.co.uk.
influitive.com. 5 NS ns-111.awsdns-13.com.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0