ns2.datagroup.com.ua has no NS records.
NS records for this zone are defined at datagroup.com.ua.
NS records for this zone are defined at datagroup.com.ua.
Question and response
Question
dig ns2.datagroup.com.ua. NS
Answer
The response has no answer records.
Authority
datagroup.com.ua. 3600 SOA ns.newline.net.ua. hostmaster.newline.net.ua. 2023122100 28800 7200 2419200 86400
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0