Apex domains cannot have CNAME records.
Question and response
Question
dig kissthenet.net. NS
Answer
kissthenet.net. 5 NS us2.earth.orderbox-dns.com.
kissthenet.net. 5 NS us2.mars.orderbox-dns.com.
kissthenet.net. 5 NS us2.venus.orderbox-dns.com.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0