s1.gateworks.nl has no NS records.
NS records for this zone are defined at gateworks.nl.
NS records for this zone are defined at gateworks.nl.
Question and response
Question
dig s1.gateworks.nl. NS
Answer
The response has no answer records.
Authority
gateworks.nl. 3600 SOA ns1.gateworks.nl. hostmaster.gateworks.nl. 2015111441 3600 1800 2592000 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0