pns4.clouddns.net has no NS records.
NS records for this zone are defined at clouddns.net.
NS records for this zone are defined at clouddns.net.
Question and response
Question
dig pns4.clouddns.net. NS
Answer
The response has no answer records.
Authority
clouddns.net. 3600 SOA pns1.cloudns.net. support.cloudns.net. 2026030601 7200 1800 1209600 3600
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0