Outage in Heroku

Intermittent routing availability for some applications in US region

Resolved Minor
September 08, 2025 - Started about 12 hours ago - Lasted about 3 hours
Official incident page

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Outage Details

Beginning at approximately 18:02 UTC on September 8 2025, some customers in the US region may have experienced intermittent connectivity issues with their applications causing timeouts. Heroku engineers responded to an unexpected spike in traffic. The connectivity issues resolved at approximately 18:33 UTC on September 8, 2025 as scaling policies increased capacity and the traffic spike subsided. Engineers will continue to monitor the traffic, but the incident is considered resolved.
Components affected
Heroku Apps
Latest Updates ( sorted recent to last )
RETROACTIVE about 12 hours ago - at 09/08/2025 07:36PM

Beginning at approximately 18:02 UTC on September 8 2025, some customers in the US region may have experienced intermittent connectivity issues with their applications causing timeouts. Heroku engineers responded to an unexpected spike in traffic. The connectivity issues resolved at approximately 18:33 UTC on September 8, 2025 as scaling policies increased capacity and the traffic spike subsided. Engineers will continue to monitor the traffic, but the incident is considered resolved.

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