Apex domains cannot have CNAME records.
Question and response
Question
dig automatic-stirring-cup.com. NS
Answer
automatic-stirring-cup.com. 4 NS ns2.automatic-stirring-cup.com.
automatic-stirring-cup.com. 4 NS ns1.automatic-stirring-cup.com.
Authority
The response has no authority records.
Additional
ns1.automatic-stirring-cup.com. 4 A 170.130.204.210
ns2.automatic-stirring-cup.com. 4 A 50.3.109.110
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0