Apex domains cannot have CNAME records.
Question and response
Question
dig arvid.ee. NS
Answer
arvid.ee. 5 NS tempo.arvid.ee.
arvid.ee. 5 NS cube.arvid.ee.
Authority
The response has no authority records.
Additional
cube.arvid.ee. 5 A 92.62.99.158
tempo.arvid.ee. 5 A 92.62.99.129
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0