ns2.ttnetdns.com.tr has no NS records.
NS records for this zone are defined at ttnetdns.com.tr.
NS records for this zone are defined at ttnetdns.com.tr.
Question and response
Question
dig ns2.ttnetdns.com.tr. NS
Answer
The response has no answer records.
Authority
ttnetdns.com.tr. 3600 SOA ns1.ttnetdns.com.tr. hostmaster.ttnet.com.tr. 26 900 600 86400 3600
Additional
. 0 OPT ; payload 4000, xrcode 0, version 0, flags 0