Apex domains cannot have CNAME records.
Question and response
Question
dig relcom.kz. NS
Answer
relcom.kz. 5 NS ns.relcom.kz.
relcom.kz. 5 NS ns2.relcom.kz.
Authority
The response has no authority records.
Additional
ns.relcom.kz. 5 A 80.241.0.65
ns2.relcom.kz. 5 A 80.241.0.81
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0