Apex domains cannot have CNAME records.
Question and response
Question
dig kentakademi.net. NS
Answer
kentakademi.net. 5 NS ns1.hoskia.com.
kentakademi.net. 5 NS ns2.hoskia.com.
Authority
The response has no authority records.
Additional
ns1.hoskia.com. 5 A 109.199.241.110
ns2.hoskia.com. 5 A 109.199.241.110
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0