Apex domains cannot have CNAME records.
Question and response
Question
dig RECONN.RU. NS
Answer
reconn.ru. 2 NS dns2.RECONN.RU.
reconn.ru. 2 NS dns1.RECONN.RU.
Authority
The response has no authority records.
Additional
dns1.RECONN.RU. 2 A 195.209.51.6
dns2.RECONN.RU. 2 A 195.209.55.6
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0