spf1.telenor.dk has no NS records.
NS records for this zone are defined at telenor.dk.
NS records for this zone are defined at telenor.dk.
Question and response
Question
dig spf1.telenor.dk. NS
Answer
The response has no answer records.
Authority
telenor.dk. 300 SOA ns-cloud-d1.googledomains.com. hostmaster.telenor.dk. 2 21600 3600 259200 300
Additional
. 0 OPT ; payload 512, xrcode 0, version 0, flags 0