An Amazon Web Services outage has caused significant issues for a number of high-profile websites Monday morning, including Snapchat, Roblox, Fortnite, online broker Robinhood and the McDonald’s app.

Slack, Snapchat, Signal and Perplexity were some of the affected apps and websites, among a host of big names. AWS offers cloud servers that allow these services, and millions of other websites and platforms, to run. AWS is a cloud-computing platform that provides the infrastructure underpinning much of the internet.

How Amazon’s most important cloud region became critical to daily online life, and why even a brief disruption can have global effects.

An Amazon Web Services outage has caused significant issues for a number of high-profile websites Monday morning, including Snapchat, Roblox, Fortnite, online broker Robinhood and the McDonald’s app.

The issue impacted thousands of websites and apps across the globe. The website DownDetector showed users reporting issues with Reddit, Snapchat, Ring, Roblox, Fortnite, Amazon, Starbucks, Facebook and more. Coinbase, the largest U.S. cryptocurrency exchange, said its services was unavailable because of the AWS outage.

The instructional website Iowa Regent universities use for teachers and students, Canvas, was impacted by the outage.

When the cloud failed, it was not just servers that went dark. It was a reminder of how connected and vulnerable we really are.

Snapchat, Fortnite, Starbucks and more websites were down Monday after issue with Amazon Web Services. Here's what to know and when it may be fixed.