primary.maxnameserver.net has no NS records.
NS records for this zone are defined at maxnameserver.net.
NS records for this zone are defined at maxnameserver.net.
Question and response
Question
dig primary.maxnameserver.net. NS
Answer
The response has no answer records.
Authority
maxnameserver.net. 893 SOA dns.dns1.de. hostmaster.internetwire.de. 2019070301 900 7200 604800 900
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0