Maximum uptime with a globally distributed network.

Global server network

DNS servers are critical parts of internet infrastructure. When you rely on Zerigo for your DNS services, you're trusting us to provide those services without interruption.

To that end, we've built a global server network, with DNS servers geographically distributed across North America, Europe and Asia.

Our global network has been carefully built to maximize uptime and reliability. Each production server is fully independent of the others to avoid the possibility of a cascading failure.

We run our servers substantially below maximum capacity to leave plenty of room for traffic spikes or other unanticipated traffic.

Instant updates

Who wants to wait hours for DNS changes to make it to their DNS servers? We don't and we're sure you don't either.

Updates made via our web interface or our API are processed by our custom synchronization engine and reflected in our DNS servers in an average of 30 seconds.

Our super fast DNS updates also make our service great for dynamic DNS.

Native IPv6

Ensure your DNS service is prepared for the future with IPv6.

Our nameserver network features native IPv6 connectivity—no tunnels or other sub-standard silliness. Whether your queries come in via IPv4 or IPv6, we're ready to answer all of them.

Of course, we also provide full support for IPv6 address (AAAA) records as well as IPv6 reverse DNS domains.

Our Dynamic DNS service can do IPv6 too—just specify an IPv6 address and we'll automatically look for an AAAA record to update.

SLA-backed reliability

Our global DNS network has been carefully engineered to be reliable and fault tolerant. Every DNS server is fully independent so there's no possibility of cascading failures.

Our promise of a reliable network is backed up by our DNS SLA which guarantees overall network uptime of 100% and individual server responsiveness at 99.99% (see the SLA for details).

Low TTLs

If you have DNS information that may need to change on short notice, fast updates are only half of the equation. The other half is support for low TTL (time-to-live, refresh period) values.

Zerigo allows you to fully configure the TTL for each domain and each host record. TTLs can be as low as 1 minute.


Designed with you in mind.

Easy-to-use management interface

You have enough things to worry about without fighting some clunky UI. We won't put you through that.

Our web-based management interface has been purpose-built to be easy-to-use and efficient — perfect for letting you get tasks done and getting back to more important things.

Free basic plan to get started

We've made a basic plan available for free so you can try Zerigo DNS out without obligation. We won't even ask for your credit card. After you've had a chance to use it and see how it works, we hope you'll choose to upgrade. If something's preventing you from wanting to do so, please let us know.

Wildcard hostnames

Want to use one sub-domain per customer, like customername.domain.com?

We offer not one, but two ways to accomplish that goal.

The easiest, and most popular, solution is a wildcard hostname. Simply set up a host record with * as the hostname.

Alternatively, use our API to automate adding and removing host records.

Friendly, knowledgeable support

Our customers continually tell us how great our support is. Part of our secret is just being friendly and patient, and always taking time to listen.

Our team is small, personable, and knowledgeable. With no need to read scripts or copy-and-paste form responses, we can meet you right where you're at.

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Power and Flexibility means great happiness.

Powerful API

In addition to our easy-to-use web interface, we offer a powerful REST API. Our API is perfect for rapid updates related to cloud-based services.

For example, create unique host records for each of your customers.

Or, automatically create a record every time you launch a new VPS, cloud server, or EC2 instance.

Vanity nameservers

Also known as custom nameservers, vanity nameservers allow advanced users to more thoroughly configure domain settings. The result is complete custom branding within each domain/zone record, including the hostmaster information.

We even make adding the matching A records super easy by providing a select-box of the IPs for each of our nameservers.

Available with DNS Plus and DNS Pro.

Native IPv6

Ensure your DNS service is prepared for the future with IPv6.

Our nameserver network features native IPv6 connectivity—no tunnels or other sub-standard silliness. Whether your queries come in via IPv4 or IPv6, we're ready to answer all of them.

Of course, we also provide full support for IPv6 address (AAAA) records as well as IPv6 reverse DNS domains.

Our Dynamic DNS service can do IPv6 too—just specify an IPv6 address and we'll automatically look for an AAAA record to update.

External master/slave support

Need Zerigo to act as a master to slave servers somewhere else? Not a problem.

Need Zerigo's servers to function as slaves to an external master? We can do that too.

Not available with our free plan.

Domain import & upload tools

Our domain import tool makes it easier than ever to configure your domains with Zerigo.

Simply enter the domain and a current DNS server hosting that domain and we'll do the rest.

As long as the remote server agrees to send your domain's information, it will be imported instantly—ready for your immediate review and use.

Alternatively, use our domain upload tool to upload a BIND-style zone file. We'll extract all the host records from it and immediately add them to your new domain.

Domain templates

Have you ever needed to configure two or more domains identically? Even similarly?

We provide domain templates that can significantly ease the configuration of multiple domains.

If they're all identical, just point the domain to the template. Future changes to the template can even automatically apply to each referencing domain.

Alternatively, use the template as a one time copy, allowing you to then make changes to the domain.