auth01.dns.sippeer.dk has no NS records.
NS records for this zone are defined at sippeer.dk.
NS records for this zone are defined at sippeer.dk.
Question and response
Question
dig auth01.dns.sippeer.dk. NS
Answer
The response has no answer records.
Authority
sippeer.dk. 1800 SOA eric.ns.cloudflare.com. dns.cloudflare.com. 2398729444 10000 2400 604800 1800
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0