mta01.nroute.de has no NS records.
NS records for this zone are defined at nroute.de.
NS records for this zone are defined at nroute.de.
Question and response
Question
dig mta01.nroute.de. NS
Answer
The response has no answer records.
Authority
nroute.de. 3600 SOA dns01.nroute.de. hostmaster.navigate-it-services.de. 2026031901 10800 3600 604800 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0