Creating a new zone

Note: Instead of adding zones manually, you can import a zone file.

Click the Zones tab in the main navigation bar to view a list of all DNS zones associated with your account.
Click Add Zone.
Enter the domain name.
(Optional) If necessary, adjust zone settings.

Note: Refer to the article Best practices: TTL configuration to learn more about setting time-to-live values.
When finished, click Save Zone. The new zone will appear in the list and will be populated with an NS record with associated NS1 nameserver.
Proceed by adding records to the zone.

Refer to this article for instructions on how to create a linked zone.