ns2.netorn.net has no CNAME records.
Question and response
Question
dig ns2.netorn.net. NS
Answer
The response has no answer records.
Authority
netorn.net. 3600 SOA ns.netorn.ru. admin.netorn.ru. 2025060217 3600 900 3600000 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0