ns1.nxdomain.joker.com has no NS records.
NS records for this zone are defined at joker.com.
NS records for this zone are defined at joker.com.
Question and response
Question
dig ns1.nxdomain.joker.com. NS
Answer
The response has no answer records.
Authority
joker.com. 300 SOA x.ns.joker.com. hostmaster.joker.com. 2026032332 14400 3600 1209600 300
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0