AWS Outage Disrupts Major Online Services Due to DNS Failure

On October 20, 2025, Amazon Web Services (AWS) experienced a significant outage originating from its US-EAST-1 region in Northern Virginia. The disruption began around 3:11 a.m. ET and was attributed to a Domain Name System (DNS) failure affecting the DynamoDB API endpoints.

The outage impacted numerous high-profile services, including Snapchat, Reddit, Venmo, Fortnite, and Roblox, rendering them inaccessible to users worldwide. AWS reported that the DNS issue was fully mitigated by approximately 6:35 a.m. ET, with services gradually returning to normal operations.

DNS functions as the internet's address book, translating human-readable domain names into machine-readable IP addresses. A failure in this system can prevent users from accessing websites and services, as their browsers cannot locate the corresponding servers.

The US-EAST-1 region is a critical hub for AWS, hosting a substantial portion of its infrastructure. Consequently, issues in this region can have widespread effects on global services relying on AWS.

This incident underscores the potential risks associated with centralized cloud services and highlights the importance of robust infrastructure and contingency planning to mitigate the impact of such outages.