dns.6.217.161.5.i2vpn.com has no NS records.
NS records for this zone are defined at i2vpn.com.
NS records for this zone are defined at i2vpn.com.
Question and response
Question
dig dns.6.217.161.5.i2vpn.com. NS
Answer
The response has no answer records.
Authority
i2vpn.com. 1800 SOA duke.ns.cloudflare.com. dns.cloudflare.com. 2398195473 10000 2400 604800 1800
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0