dzc.idcfcloud.net has no NS records.
NS records for this zone are defined at idcfcloud.net.
NS records for this zone are defined at idcfcloud.net.
Question and response
Question
dig dzc.idcfcloud.net. NS
Answer
The response has no answer records.
Authority
idcfcloud.net. 3600 SOA ns01.idcfcloud.com. dns-support.idc.jp. 45 10800 3600 604800 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0