kubetest.fliva.com has no NS records.
NS records for this zone are defined at fliva.com.
NS records for this zone are defined at fliva.com.
Question and response
Question
dig fliva-api-c9e5539c56c0ea24.elb.eu-central-1.amazonaws.com. NS
Answer
The response has no answer records.
Authority
elb.eu-central-1.amazonaws.com. 60 SOA ns-1390.awsdns-45.org. awsdns-hostmaster.amazon.com. 1 7200 900 1209600 60
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0