eins-01.unwiredbb.net has no NS records.
NS records for this zone are defined at unwiredbb.net.
NS records for this zone are defined at unwiredbb.net.
Question and response
Question
dig eins-01.unwiredbb.net. NS
Answer
The response has no answer records.
Authority
unwiredbb.net. 900 SOA ns1.unwiredbb.net. ipadmin.unwiredbb.net. 2019092180 900 900 604800 900
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0