Introducing UptimeRobot’s Core Monitoring Infrastructure Upgrade: What’s Changing And What it Means For You.

At UptimeRobot, we’re always evolving to serve you better—while understanding that change can sometimes be inconvenient.

We’re excited to announce a major infrastructure upgrade designed to boost performance, scalability, and reliability.

This upgrade will help us deliver faster, more reliable service as we grow, and we hope you’ll see the benefits soon.

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Here’s what’s changing:

1. Migration to the cloud

We’re moving from dedicated servers to a “multiple cloud provider” setup.

This decision wasn’t taken lightly. While some may note concerns about loss of control, our previous provider just didn’t meet our super-high expectations of reliability and stability, plus it was a limiting factor in other aspects too.

By distributing our infrastructure across trusted cloud providers, we’re ensuring smoother, faster operations and greater resiliency. We know stability is key for you, and this change sets the foundation for it.

With this move, we’ll also have a greater flexibility to scale, and be able to offer more advanced features like multi-location monitoring more easily.

2. Improved IP resolution cache

We’ve optimized our DNS IP resolution process, so it now follows DNS TTL more closely. This means faster, more accurate monitoring and real-time responsiveness—improving the overall accuracy of the service.

3. We recommend to ensure IPv6 is working on your end

The Internet is steadily moving toward IPv6, and so are we! Our new architecture will work with IPv4 for now but might start to prioritize IPv6 in the near future.

We understand IPv6 might not be a top priority for everyone right now. Adoption has been quite slow, and many setups still prioritize IPv4. However, we’re positioning ourselves for the future, which is why we recommend checking that IPv6 works on your end!

If your provider doesn’t support IPv6 yet, don’t worry—you still have time, and IPv4 will continue to work for now.

4. New IP Addresses (We know, it’s a pain!)

Yes, we’re introducing new IP addresses as part of this upgrade ☹️

We get it—updating firewall rules can be a hassle. But rest assured, these IPs won’t be changing again anytime soon. Please ensure these new IPs are added to your allowlist to keep your monitoring running smoothly.

Action Required: Please update your firewall rules accordingly and ensure the IP addresses are added to your allowlist. 

If you run into any issues related to these changes, please don’t be afraid to reach out to our support team.

What’s in for you?

We’re laying the groundwork for several new features we’ve been developing based on your valuable feedback. The updated infrastructure will enable multi-location monitoring, and we’re also excited about response time monitoring, both of which are coming soon 👀

These improvements will bring tangible benefits that improve the quality and scope of the services you rely on. We know there’s more to discuss, and we’d love to hear your thoughts in the comments. Let us know how we can continue to improve for you!

Frequently asked questions

Do I need to take any action?

Yes, please make sure you update your firewall allowlist with the new IP addresses. Also it is highly recommended to make sure IPv6 works on your end.

Will my running monitors be affected?

Your existing monitors shouldn’t be impacted. If you experience any issues, our support team is here to help.

How do I find the new IP addresses? 

You can find the updated list of IP addresses on our website or by contacting our support team.