staging.builder.nu has no NS records.
NS records for this zone are defined at builder.nu.
NS records for this zone are defined at builder.nu.
Question and response
Question
dig staging.builder.nu. NS
Answer
The response has no answer records.
Authority
builder.nu. 300 SOA ns1.wannafind.dk. hostmaster.wannafind.dk. 2025112601 14400 3600 1209600 300
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0