dns3.nska.net has no CNAME records.
Question and response
Question
dig dns3.nska.net. NS
Answer
The response has no answer records.
Authority
nska.net. 515 SOA dns1.nska.net. www.nska.net. 2026011211 14400 3600 604800 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0