Apex domains cannot have CNAME records.
Question and response
Question
dig NOVOTELECOM.RU. NS
Answer
novotelecom.ru. 5 NS 2.ns.novotelecom.ru.
novotelecom.ru. 5 NS 1.ns.novotelecom.ru.
Authority
The response has no authority records.
Additional
1.ns.NOVOTELECOM.RU. 5 A 178.49.132.80
2.ns.NOVOTELECOM.RU. 5 A 178.49.132.81
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0