msk02.dns.svc.xbox-dns.ru has no CNAME records.
Question and response
Question
dig msk02.dns.svc.xbox-dns.ru. NS
Answer
The response has no answer records.
Authority
xbox-dns.ru. 55 SOA ns1.timeweb.ru. dns.timeweb.ru. 150 28800 7200 259200 300
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0