www.x5-tech.ru has no NS records.
NS records for this zone are defined at x5-tech.ru.
NS records for this zone are defined at x5-tech.ru.
Question and response
Question
dig www.x5-tech.ru. NS
Answer
The response has no answer records.
Authority
x5-tech.ru. 3600 SOA ns1.x5.ru. hostmaster.x5.ru. 2015042075 1800 600 86400 3600
Additional
. 0 OPT ; payload 4000, xrcode 0, version 0, flags 0