The AWS outage occurred on October 20, 2025, with extended disruption in the US East (us-east-1) region that lasted many hours and affected numerous services and customers. Full restoration varied by service, with AWS indicating that all services returned to normal in the early evening UTC, though some downstream effects and backlogs continued to be resolved in the following hours. Multiple analyses and health reports attributed the incident to a cascading failure initiated by a regional DNS race condition and subsequent infrastructure issues, highlighting the complexity and scale of AWS’s cloud ecosystem. Major coverage and post-event analyses noted that the outage impacted thousands of apps and services that depend on AWS, underscoring the ripple effects across the internet. If you’d like, I can pull more detailed, up-to-date sources or summarize AWS’s official post-event documentation and third-party analyses.