dns02.ports.se has no NS records.
NS records for this zone are defined at ports.se.
NS records for this zone are defined at ports.se.
Question and response
Question
dig dns02.ports.se. NS
Answer
The response has no answer records.
Authority
ports.se. 3600 SOA ns1.p201.dns.oraclecloud.net. registry.ports.net. 2025070700 1800 900 1814400 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0