nl.xtek.ro has no NS records.
NS records for this zone are defined at xtek.ro.
NS records for this zone are defined at xtek.ro.
Question and response
Question
dig nl.xtek.ro. NS
Answer
The response has no answer records.
Authority
xtek.ro. 1800 SOA angela.ns.cloudflare.com. dns.cloudflare.com. 2397953182 10000 2400 604800 1800
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0