Apex domains cannot have CNAME records.
Question and response
Question
dig salenames.ru. NS
Answer
salenames.ru. 5 NS ns1.r01.ru.
salenames.ru. 5 NS ns2.r01.ru.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0