Ziflow incident

AWS Outage Impacting Proof Processing and Viewer Services

Resolved after 1 hour 57 minutes, on October 20, 2025.

resolved Oct 20, 2025, 10:15 AM UTC

On October 20, 2025, our hosting provider Amazon Web Services (AWS) experienced a regional outage in US-EAST-1, leading to increased error rates and latency across multiple AWS services. This outage affected several of our systems, including Proof Processing and Proof Viewer, resulting in partial service disruption between 3:35 AM and 4:35 AM EDT (7:35 AM – 08:35 AM UTC). AWS identified the issue as related to DNS resolution failures impacting DynamoDB and dependent services. Mitigations were applied progressively, and AWS reported recovery signs around 5:27 AM EDT. Our systems resumed normal operations once AWS services stabilized. All our services are now operating normally, and we continue to monitor system performance to ensure full stability.

Started
Oct 20, 2025, 07:30 AM UTC
Resolved
Oct 20, 2025, 09:27 AM UTC
Duration
1h 57m
Detected by Pingoru
Oct 20, 2025, 07:30 AM UTC

Update timeline

  1. resolved Oct 20, 2025, 10:15 AM UTC

    On October 20, 2025, our hosting provider Amazon Web Services (AWS) experienced a regional outage in US-EAST-1, leading to increased error rates and latency across multiple AWS services. This outage affected several of our systems, including Proof Processing and Proof Viewer, resulting in partial service disruption between 3:35 AM and 4:35 AM EDT (7:35 AM – 08:35 AM UTC). AWS identified the issue as related to DNS resolution failures impacting DynamoDB and dependent services. Mitigations were applied progressively, and AWS reported recovery signs around 5:27 AM EDT. Our systems resumed normal operations once AWS services stabilized. All our services are now operating normally, and we continue to monitor system performance to ensure full stability.

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