d0.monitoringservice.net has no NS records.
NS records for this zone are defined at monitoringservice.net.
NS records for this zone are defined at monitoringservice.net.
Question and response
Question
dig d0.monitoringservice.net. NS
Answer
The response has no answer records.
Authority
monitoringservice.net. 180 SOA ns10.digicertdns.com. dns.digicertdns.com. 2009010218 43200 3600 1209600 180
Additional
. 0 OPT ; payload 1280, xrcode 0, version 0, flags 0