ext-haproxy.doop.fi.0-24.57.83.5.in-addr.arpa has no NS records.
NS records for this zone are defined at 0-24.57.83.5.in-addr.arpa.
NS records for this zone are defined at 0-24.57.83.5.in-addr.arpa.
Question and response
Question
dig ext-haproxy.doop.fi.0-24.57.83.5.in-addr.arpa. NS
Answer
The response has no answer records.
Authority
0-24.57.83.5.in-addr.arpa. 300 SOA ns-cloud-b1.googledomains.com. cloud-dns-hostmaster.google.com. 2 21600 3600 259200 300
Additional
. 0 OPT ; payload 512, xrcode 0, version 0, flags 0