vps.vitalac.com.bd has no NS records.
NS records for this zone are defined at vitalac.com.bd.
NS records for this zone are defined at vitalac.com.bd.
Question and response
Question
dig vps.vitalac.com.bd. NS
Answer
The response has no answer records.
Authority
vitalac.com.bd. 1800 SOA jeff.ns.cloudflare.com. dns.cloudflare.com. 2397199375 10000 2400 604800 1800
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0