www.tibus.com has no NS records.
NS records for this zone are defined at tibus.com.
NS records for this zone are defined at tibus.com.
Question and response
Question
dig www.tibus.com. NS
Answer
The response has no answer records.
Authority
tibus.com. 1800 SOA anirban.ns.cloudflare.com. dns.cloudflare.com. 2399164394 10000 2400 604800 1800
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0