The major services currently down are primarily due to a significant outage in Amazon Web Services (AWS) in the US-EAST-1 server region. This disruption has impacted a wide range of prominent online platforms and services, including social media apps like Snapchat, messaging service Signal, gaming platforms Fortnite and Roblox, financial services such as Robinhood and Coinbase, as well as Amazon's own services like Alexa, Ring doorbell cameras, and Amazon.com itself. Additionally, popular apps like the McDonald's app, Lyft, and media outlets including Disney and The New York Times experienced interruptions. Reddit is still facing degraded performance even as others recover. This incident originated from issues with AWS's domain name system, causing high error rates and latency affecting 64 AWS internal services. Recovery efforts have been underway since Monday morning, with many services now coming back online, but some issues, like Reddit's performance degradation, persist. The outage highlights a critical dependency on AWS cloud infrastructure that supports numerous global online services, making such disruptions widespread and significant in impact.