Because of the technical problems we had, we have moved our NS1 to a new place in Netherlands. With IP addresses:
IPv4: 85.159.233.17
IPv6: 2a00:1768:1001:9::1
If you use slave zones, you should enable these IP addresses for zone transfers (AXFR).
If you use DNS branding, you should rebrand your NS1 server to the new IP addresses.
Thank you for your patience and cooperation.
Regards,
ClouDNS Team