Apex domains cannot have CNAME records.
Question and response
Question
dig skleporion.net. NS
Answer
skleporion.net. 5 NS ns1.skleporion.net.
skleporion.net. 5 NS ns2.skleporion.net.
Authority
The response has no authority records.
Additional
ns1.skleporion.net. 5 A 195.88.90.3
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0