Apex domains cannot have CNAME records.
Question and response
Question
dig eteinen.fi. NS
Answer
eteinen.fi. 2 NS cp-ns1.wmhost.com.
eteinen.fi. 2 NS cp-ns2.wmhost.com.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0