check.sidnlabs.nl has no NS records.
NS records for this zone are defined at sidnlabs.nl.
NS records for this zone are defined at sidnlabs.nl.
Question and response
Question
dig check.sidnlabs.nl. NS
Answer
The response has no answer records.
Authority
sidnlabs.nl. 300 SOA ns1.sidnlabs.nl. hostmaster.sidn.nl. 40262 14400 3600 604800 300
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0