monitor.chequed.com has no NS records.
NS records for this zone are defined at chequed.com.
NS records for this zone are defined at chequed.com.
Question and response
Question
dig monitor.chequed.com. NS
Answer
The response has no answer records.
Authority
chequed.com. 180 SOA ns0.dnsmadeeasy.com. dns.dnsmadeeasy.com. 2008010135 43200 3600 1209600 180
Additional
. 0 OPT ; payload 1280, xrcode 0, version 0, flags 0