StatusCake

The most shocking websites that experienced website downtime in 2021

website downtime

2021 saw some of the biggest websites on the internet experience outages that rippled across the globe. If you thought that “large” companies couldn’t experience website downtime, unfortunately, you were wrong. Website downtime can happen to any website, small, medium, or large, and it can happen when you least expect it. Thinking that the proof is in the pudding? Check out the most shocking websites that went down in 2021: 

Facebook outage

One of the most-used websites in the world experienced downtime on October 4th 2021. And it wasn’t just for a few minutes, or even an hour, Facebook was down for a full 7 hours, making it one of its longest outages to date. 

The worst part? It wasn’t only Facebook that was impacted; globally-used communication network WhatsApp, and social media giant Instagram, were both affected causing widespread dismay from users.

What caused the outage?

Facebook released a statement shortly after explaining: 

“Our engineering teams have learned that configuration changes on the backbone routers that coordinate network traffic between our data centers caused issues that interrupted this communication. This disruption to network traffic had a cascading effect on the way our data centers communicate, bringing our services to a halt.”

Fastly outage

Fastly, which is a service provider for many of the most well-known and popularly used online retailers and other online businesses, came out and said an issue had been identified on their server and they were actively working at getting a fix in place. 

When Fastly went down on June 8th, it caused widespread disruption across the likes of Amazon, and Reddit and was deemed “the day the internet went down”. These websites use Fastly for their content delivery, which proves that downtime can affect your website even through any third parties that you might be using for the performance of your website. 

AWS outage

Amazon Web Services, known as AWS, is one of the leading cloud infrastructure providers in the world. So much so that when it suffered an outage on the 7th December, over 30% of cloud services were impacted. But that wasn’t the end of it for AWS, they had a terrible December in 2021, suffering outages on December 7th, 15th, and 22nd. 

The impact? Some of the most well-known brands in the world suffered, causing thousands of customers to take to social media to voice their concerns.

AWS quickly released a statement: “Operators continued working on a set of remediation actions to reduce congestion on the internal network including identifying the top sources of traffic to isolate to dedicated network devices, disabling some heavy network traffic services, and bringing additional networking capacity online.”

https://aws.amazon.com/message/12721/

Google outage

An unlikely website giant, Google, experienced partial downtime when their Google Docs functionality suffered issues on April 12th. This meant that users couldn’t access their docs, or open new docs, and instead, just received an error message for a prolonged amount of time. Google didn’t release an official statement regarding what was causing the issue but said simply they are “experiencing disruption”. 

This wasn’t the first time that Google had suffered an outage in 2021. Back in February, the Google home services also caused disruption when they failed to work and instead kept asking its customers to “set up device”. 

The moral of Google’s suffering? It can happen to any website.

Share this

More from StatusCake

What the Namecheap Outage Revealed About DNS Recovery

4 min read On 13th August 2026, a storm knocked out cooling at RadiusDC’s Phoenix data centre, which hosted essential Namecheap operations. To protect hardware from thermal damage, Namecheap took services offline while temporary chillers were brought in. The incident and recovery ran for roughly 30 hours, with Namecheap’s own site unreachable for about 11 hours 42 minutes

Monzo’s Stand-In Held Up on Wednesday. Some Customers Still Had a Bad Day.

3 min read On Wednesday 19 August, Monzo had an outage. DownDetector logged more than 3,000 reports by midday. Monzo’s own statement was direct about what it did next: it activated Monzo Stand-in, its fully independent backup bank, while it investigated an issue affecting customers. By the end of the day, Monzo said the issue was resolved and

What Broke GitHub on August 17 and How Retries Made the Incident Worse

3 min read GitHub’s incident on 17 August 2026 ran from 13:28 to 21:15 UTC, seven hours and forty-seven minutes. At peak, web and API traffic saw error rates of around 20%, while archive and raw-content downloads reached roughly 50%. SAML and OIDC authentication, SCIM and Team Sync were affected alongside Git operations, Actions, Pages, Issues, Pull Requests

Automate StatusCake Monitoring with viaSocket

3 min read Adding a new website, launching a customer portal, or handing a service to a new team should be straightforward. Setting up monitoring is part of that job, but it is easy for a manual step to be missed when information is spread across several systems. StatusCake now integrates with viaSocket, giving teams a way to connect

Website Monitoring Checklist: What to Track Beyond Uptime

7 min read A website may be standing and still be in trouble. It may answer a request, return a cheerful 200 OK, and yet load slowly enough that visitors begin to lose patience. Its certificate may be nearing expiry. Its domain records may have changed. A server may be filling its disk in the background, patient and

Want to know how much website downtime costs, and the impact it can have on your business?

Find out everything you need to know in our new uptime monitoring whitepaper 2021

*By providing your email address, you agree to our privacy policy and to receive marketing communications from StatusCake.