vpn.solarian.com.tr has no NS records.
NS records for this zone are defined at solarian.com.tr.
NS records for this zone are defined at solarian.com.tr.
Question and response
Question
dig vpn.solarian.com.tr. NS
Answer
The response has no answer records.
Authority
solarian.com.tr. 1800 SOA igor.ns.cloudflare.com. dns.cloudflare.com. 2398886531 10000 2400 604800 1800
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0