mx01.fibianet.dk has no NS records.
NS records for this zone are defined at fibianet.dk.
NS records for this zone are defined at fibianet.dk.
Question and response
Question
dig mx01.fibianet.dk. NS
Answer
The response has no answer records.
Authority
fibianet.dk. 900 SOA ns1.fibianet.dk. hostmaster.fibia.dk. 2026022603 21600 3600 1209600 900
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0