51.kmitd.com has no NS records.
NS records for this zone are defined at kmitd.com.
NS records for this zone are defined at kmitd.com.
Question and response
Question
dig 51.kmitd.com. NS
Answer
The response has no answer records.
Authority
kmitd.com. 3600 SOA ns3.1-hostingservice.com. domains.1-hostingservice.com. 2025111100 3600 60 604800 86400
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0