Apex domains cannot have CNAME records.
Question and response
Question
dig increasesalesgo.com. NS
Answer
increasesalesgo.com. 1 NS ns-878.awsdns-45.net.
increasesalesgo.com. 1 NS ns-1173.awsdns-18.org.
increasesalesgo.com. 1 NS ns-1803.awsdns-33.co.uk.
increasesalesgo.com. 1 NS ns-821.awsdns-38.net.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0