Apex domains cannot have CNAME records.
Question and response
Question
dig cafe-de-kampoh.com. NS
Answer
cafe-de-kampoh.com. 5 NS ns2.cafe-de-kampoh.com.
cafe-de-kampoh.com. 5 NS ns1.cafe-de-kampoh.com.
Authority
The response has no authority records.
Additional
ns1.cafe-de-kampoh.com. 5 A 192.227.72.160
ns2.cafe-de-kampoh.com. 5 A 192.227.72.161
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0