dns2.yuvox.net has no CNAME records.
Question and response
Question
dig dns2.yuvox.net. NS
Answer
The response has no answer records.
Authority
yuvox.net. 10800 SOA dns.yuvox.net. noc.yuvox.net. 2026030608 3600 1800 1209600 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0