Apex domains cannot have CNAME records.
Question and response
Question
dig capnova.com. NS
Answer
capnova.com. 5 NS ns1.momentdigital.fi.
capnova.com. 5 NS ns1.capnova.com.
capnova.com. 5 NS ns2.momentdigital.fi.
capnova.com. 5 NS ns2.capnova.com.
Authority
The response has no authority records.
Additional
ns1.capnova.com. 5 A 83.143.216.19
ns2.capnova.com. 5 A 34.89.144.154
ns1.capnova.com. 5 AAAA 2a00:14c0:0:0:0:0:0:2
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0