web1.dsau.co has no NS records.
NS records for this zone are defined at dsau.co.
NS records for this zone are defined at dsau.co.
Question and response
Question
dig web1.dsau.co. NS
Answer
The response has no answer records.
Authority
dsau.co. 1800 SOA ines.ns.cloudflare.com. dns.cloudflare.com. 2397947988 10000 2400 604800 1800
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0