vpshost3.cityhost.com.ua has no NS records.
NS records for this zone are defined at cityhost.com.ua.
NS records for this zone are defined at cityhost.com.ua.
Question and response
Question
dig vpshost3.cityhost.com.ua. NS
Answer
The response has no answer records.
Authority
cityhost.com.ua. 3600 SOA ns1.controlpanel.host. support.cityhost.com.ua. 1139 10800 3600 604800 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0