relay.quantum.RU has no CNAME records.
Question and response
Question
dig relay.quantum.RU. NS
Answer
The response has no answer records.
Authority
quantum.RU. 3878 SOA ns.quantum.RU. regadmin.quantum.RU. 20240001 28800 7200 604800 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0