lists.nordu.net has no NS records.
NS records for this zone are defined at nordu.net.
NS records for this zone are defined at nordu.net.
Question and response
Question
dig lists.nordu.net. NS
Answer
The response has no answer records.
Authority
nordu.net. 300 SOA hidden-master.nordu.net. hostmaster.nordu.net. 2026030400 14400 3600 604800 300
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0