_dmarc.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 _dmarc.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