black.xetdns.com has no NS records.
NS records for this zone are defined at xetdns.com.
NS records for this zone are defined at xetdns.com.
Question and response
Question
dig black.xetdns.com. NS
Answer
The response has no answer records.
Authority
xetdns.com. 1800 SOA ns1.atw.hu. postmaster.atw.hu. 2774012982 43200 10800 604800 1800
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0