Apex domains cannot have CNAME records.
Question and response
Question
dig arise.pl. NS
Answer
arise.pl. 5 NS nsdc2.arise.pl.
arise.pl. 5 NS nsdc1.arise.pl.
Authority
The response has no authority records.
Additional
nsdc1.arise.pl. 5 A 77.79.204.239
nsdc2.arise.pl. 5 A 77.79.204.239
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0