Apex domains cannot have CNAME records.
Question and response
Question
dig ismet.kz. NS
Answer
ismet.kz. 5 NS ns1.ismet.kz.
ismet.kz. 5 NS ns2.ismet.kz.
Authority
The response has no authority records.
Additional
ns1.ismet.kz. 5 A 93.95.243.150
ns2.ismet.kz. 5 A 93.95.243.151
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0