ntp0.vtdbo.nl.easynet.net has no NS records.
NS records for this zone are defined at nl.easynet.net.
NS records for this zone are defined at nl.easynet.net.
Question and response
Question
dig ntp0.vtdbo.nl.easynet.net. NS
Answer
The response has no answer records.
Authority
nl.easynet.net. 3600 SOA ns1.gtt.net. hostmaster.gtt.net. 2026031901 10800 3600 3600000 3600
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0