When AWS us-east-1 Fails, Much of the Internet Fails With It

There are cloud outages, and then there are us-east-1 outages.

That distinction matters because failures in AWS’s Northern Virginia region rarely feel like ordinary regional incidents. They tend instead to expose something larger and more uncomfortable: too much of the modern internet still behaves as though one place is an acceptable concentration point for infrastructure, control, recovery, and communication. When us-east-1 goes wrong, the problem is not only that workloads fail. It is that organisations often discover, too late, that more of their own operating model depended on that region than they had properly understood.

Part of this is historical. us-east-1 was AWS’s first commercial region, and over time it has become one of the busiest and most deeply embedded parts of the company’s global estate. More importantly, AWS itself now advises customers to understand and reduce certain control-plane dependencies on us-east-1, because a number of global services still rely on functions concentrated there. That makes the region more than just another place to deploy workloads. It makes it a coordination point, and that is where the risk becomes more serious.

For years, engineers have spoken about us-east-1 with a mixture of familiarity and resignation. It is where things break. It is where internet-wide incidents seem to begin. It is where the blast radius somehow feels larger than it ought to. Some of that is undoubtedly observational bias; the busiest region will always produce the most visible failures. Yet that does not weaken the core lesson. The real issue is not whether us-east-1 is statistically the least reliable AWS region. It is that when it fails, far too many businesses still find that their own architecture, their vendors, and even their incident communications were more entangled with it than they had realised.

us-east-1 is not just another region

The easiest mistake is to think about us-east-1 as though it were simply one region among many. In one sense, of course, it is. But in another, it plainly is not.

AWS’s own guidance makes this hard to ignore. The company distinguishes between control planes and data planes, and it notes that some globally important functions remain tied to Northern Virginia. That means a business may be pleased with itself for having deployed workloads elsewhere while still depending on us-east-1 for management operations, service coordination, or recovery steps. In other words, an organisation may believe it has diversified regional risk while leaving a meaningful part of its operating model anchored to the very place it thinks it has avoided.

That is why the usual question — “Are we hosted in us-east-1?” — is useful but insufficient. A better set of questions would be: which parts of our system run there; which parts of our control path still depend on it; which global AWS services tie back to it; which vendors use it; and whether our failover path can actually function if Northern Virginia is impaired. Once the matter is framed that way, us-east-1 stops looking like a simple hosting choice and starts looking like a dependency problem.

That, really, is the more adult way to think about it.

The outage history is difficult to dismiss

One should be careful not to overstate the case. AWS does not publish a neat comparative reliability ranking of its regions, and public visibility is inevitably biased toward its largest and most interconnected estate. Still, even with those caveats, the pattern is hard to wave away.

The major us-east-1 incidents of recent years are well known for a reason. The December 2021 disruptions were among the most widely felt cloud events of the past decade. Further Northern Virginia incidents followed in 2023, 2024, and 2025, each showing in different ways how a failure in one region could spill outward across dependent services and customer estates. The point is not merely that outages happened. Outages happen everywhere. The point is that when they happened there, the consequences were felt far beyond the organisations that had consciously chosen to run their own applications in that region.

That is what makes us-east-1 unusually consequential. Its failures so often become everyone’s problem.

There are, no doubt, reasons for this beyond simple unreliability. It is an old region, a large region, and one in which many customers and vendors have historically concentrated workloads because of breadth, maturity, and service availability. It may also be the case that changes or new capabilities have often reached it early. But those explanations do not soften the business lesson. If a region is so central that its failures repeatedly become internet-wide events, then it deserves to be treated as a concentration point of risk, not merely another row in a deployment matrix.

The real danger is hidden dependency

This is where many businesses still think too narrowly.

The naïve version of the question is whether an application is directly hosted in us-east-1. If the answer is no, leadership often relaxes. But a business can avoid deploying its primary workload there and still be uncomfortably dependent on it in quieter ways.

Its DNS control plane may touch it. Its failover process may require AWS APIs that become harder to use during a us-east-1 event. Its vendors may run critical services there. Its identity, monitoring, or deployment workflows may still rely on the same region. Its recovery plan may, in practice, assume a healthy Northern Virginia in order to begin recovering elsewhere.

That is why the most dangerous dependency is often not the obvious one. It is the dependency that sits inside the path you rely on to understand, manage, or escape an outage.

A regional dependency is always more serious when it is also part of the route out.

Seen that way, the problem with us-east-1 is not only that businesses run workloads there. It is that they often discover, only during failure, that they have allowed the region to become part of the machinery by which they coordinate operations, talk to vendors, notify customers, and execute recovery. AWS’s own practical guidance on reducing control-plane dependencies in us-east-1 effectively makes the same point.

Incident communication is where this becomes embarrassing

There is one category of dependency that deserves particular attention: incident communication.

When customers experience disruption, they do not merely want restoration. They want explanation. They want to know whether the problem is acknowledged, how widely it is being felt, what is being done, and when they can expect more information. The status page, incident portal, or communications channel is therefore not an optional accessory. It is one of the few public interfaces that still matters when the core product is failing.

Unless, of course, it shares too much of the same dependency chain.

This is not a criticism of any one vendor so much as an architectural warning. The October 2025 AWS us-east-1 outage showed that even incident-communication tooling can be impaired by the same event customers are trying to explain; for instance status pages using Atlassian’s Statuspage product could not be updated during the outage, while Atlassian was among the services affected by the wider AWS event.

That is the uncomfortable truth. If your status page, monitoring stack, or communications tooling sits too close to the region or provider failure you are trying to explain, then you have not really separated communication from the incident at all. The value of a status page is not that it exists when everything is healthy. It is that it remains useful when the rest of the estate is not.

The same applies to monitoring and alerting. During a major cloud event, the relevant question is not who has the most elegant interface or the longest feature list. It is who is still standing.

What businesses should ask of themselves

The most useful outcome of a discussion like this is not to provoke theatrical outrage at one AWS region. It is to force a more rigorous self-examination.

Any engineering leader materially dependent on AWS should be able to answer a handful of questions with some confidence.

Do our production systems run in us-east-1? If not, do any important control-plane operations still depend on it? Can our failover be executed if us-east-1 is impaired, or merely if some other region is? Do our DNS, identity, deployment, or observability workflows quietly assume a healthy Northern Virginia? Would our customer communications path still work? Have we ever tested a scenario in which us-east-1 is not just degraded as a data plane, but unavailable as a coordination point?

These are not ceremonial architecture questions. They are what distinguish an organisation that has purchased cloud capacity from one that has really thought about resilience.

It is still common for teams to speak as though resilience were simply a matter of adding another region or another replica. Those things help, of course. But regional redundancy does not eliminate systemic dependency if the region you are trying to escape still controls some meaningful part of the path.

The question is not merely whether you have another region. It is whether your system remains governable when this one is the problem.

What businesses should ask of their vendors

The same discipline has to extend outward.

Most companies now depend on a dense web of SaaS providers and cloud services, many of which are themselves heavily dependent on AWS. Yet vendor reviews often underweight infrastructure concentration. Security, support, price, and integrations are all scrutinised carefully. Dependency geography often is not.

That is a mistake.

Businesses should be willing to ask their vendors some rather direct questions. Which cloud do you run on? Which region is primary? Is your service effectively single-region? Is your control plane separate from your customer-facing path? What happens if us-east-1 has a serious event? Can you still notify customers? Where is your status page hosted? What parts of your service remain available during a regional cloud disruption?

These are not hostile questions. They are simply the right ones.

In practice, many businesses are less diversified than they think they are. They believe they are spreading risk across multiple tools and suppliers, when in reality they may be renting the same regional dependency through several different logos.

Why this matters to us at StatusCake

There is a practical reason this matters to us beyond commentary.

At StatusCake, we have deliberately chosen not to host infrastructure in us-east-1. That is not because Northern Virginia is forbidden territory, nor because one region should be treated as uniquely unclean. It is because, if your job is to help customers maintain visibility and communicate clearly when infrastructure goes wrong, it makes little sense to place yourself casually inside the most obvious shared blast radius.

The point of resilience is not only to monitor dependency risk. It is to avoid sharing that dependency unnecessarily.

That matters because incident tooling is not judged in theory. It is judged under strain. Customers do not need monitoring and communications systems that are merely elegant in normal times. They need tools that remain useful when the wider environment is not behaving normally at all. At that moment, architecture stops being an internal design preference and becomes part of the product itself.

The lesson is not “never use us-east-1”

One should remain sane about all this.

There are rational reasons to use us-east-1. It is broad, mature, and deeply integrated into the AWS ecosystem. For many businesses it remains the easiest place to start, and for some it may remain the right place to operate. A blanket prohibition would be unserious.

But neither should it be treated as an unquestioned default.

The real lesson is narrower and more defensible. us-east-1 is unusually consequential, and too many organisations still fail to model that consequence properly. They think about workloads when they should think about control paths. They think about hosting when they should think about concentration risk. They review vendors for features while neglecting to ask where those vendors themselves are vulnerable. And they assume their status page will be available because it exists, without first asking whether it shares the same failure domain as the product it is supposed to explain.

That is why the right conclusion is not that Northern Virginia is uniquely cursed. It is that much of the modern internet still treats one place in one AWS region as an acceptable concentration point for infrastructure, coordination, recovery, and communication all at once.

So long as that remains true, each us-east-1 outage will continue to look less like an isolated operational event and more like a recurring demonstration of architectural complacency.