Outage in Fastly
Elevated Errors for Compute
Resolved Minor
September 11, 2026 - Started about 13 hours ago
- Lasted about 7 hours
Incident Report
Summary AI Generated
Fastly experienced elevated 431 errors affecting Next-Gen WAF (NGWAF) services running on Compute, lasting approximately 7 hours. Engineers identified the root cause and deployed a fix, with services gradually restoring, though some customers faced intermittent issues during stabilization. CDN services were confirmed unaffected by the incident.
We are investigating an issue causing elevated 431 errors on requests for our customers.We will provide another update as more information becomes available or within the next hour.
Components affected
Fastly Fanout Fastly Compute Fastly Config Store Fastly KV Store Fastly Secret Store Fastly AI Accelerator Fastly Edge Cloud Services Fastly Websockets Fastly Next-Gen WAF (NGWAF)Trusted by 1,000+ teams
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Latest Updates ( sorted recent to last )
about 12 hours ago - at 09/11/2026 04:19PM
[in progress]
A fix has been deployed for the issue impacting our Next-Gen WAF services running on Compute.We are observing a gradual restoration of services, though some customers may continue to experience intermittent issues as the system stabilizes.To clarify an earlier update: this issue affected Next-Gen WAF on Compute, not our CDN service, which was not impacted.Our team is actively monitoring the recovery and will post another update once services are fully restored.
about 13 hours ago - at 09/11/2026 03:35PM
A fix is being deployed for the issue impacting our CDN service.We are observing a gradual restoration of services, though some customers may continue to experience intermittent issues as the system stabilizes.Our team is actively monitoring the recovery and will post another update once services are fully restored.
about 13 hours ago - at 09/11/2026 03:34PM
Our engineers have identified the contributing factor causing the issue impacting our CDN service.Our engineers are now deploying a fix, and we will post a new update once it has been fully implemented and we see signs of recovery.All other products and services remain unaffected by this incident.
about 13 hours ago - at 09/11/2026 03:09PM
We are investigating an issue causing elevated 431 errors on requests for our customers.We will provide another update as more information becomes available or within the next hour.
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