Apex domains cannot have CNAME records.
Question and response
Question
dig multi-menu.com. NS
Answer
multi-menu.com. 5 NS chita.ens.mail.ru.
multi-menu.com. 5 NS ryazan.ens.mail.ru.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0