api.dev.cloud.gwdg.de has no NS records.
NS records for this zone are defined at dev.cloud.gwdg.de.
NS records for this zone are defined at dev.cloud.gwdg.de.
Question and response
Question
dig api.dev.cloud.gwdg.de. NS
Answer
The response has no answer records.
Authority
dev.cloud.gwdg.de. 60 SOA dns1.gwdg.de. hostmaster.gwdg.de. 679233805 21600 3600 2419200 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0