ns1.exoscale.io has no NS records.
NS records for this zone are defined at exoscale.io.
NS records for this zone are defined at exoscale.io.
Question and response
Question
dig ns1.exoscale.io. NS
Answer
The response has no answer records.
Authority
exoscale.io. 10800 SOA ns1.gandi.net. hostmaster.gandi.net. 1773273600 10800 3600 604800 10800
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0