Retrospective: Fastly Application Elevated Errors

Informational
10 February 2026, 20:03 UTC

Retrospective: Fastly Application Elevated Errors

Status: closed
Date: 10 February 2026, 13:38 UTC
End: 10 February 2026, 20:03 UTC
Duration: 6 hours 25 minutes
Affected Components:
Fastly Fastly Application API & Configuration Management Notification Center API Services Configuration Management Services
Update

10 February 2026, 13:38 UTC

10 February 2026, 13:38 UTC

Fastly Engineers detected a performance impacting event with elevated errors for the manage.fastly.com and API.  Customers may have experienced elevated 5xx/4xx errors when attempting configuration updates from 13:38 to 13:52 UTC.

CDN delivery, stats aggregation, and all other data plane services were unaffected.

The issue has been resolved and we are monitoring performance closely.

Resolved

10 February 2026, 20:03 UTC

10 February 2026, 20:03 UTC

This event has been resolved.

As final mitigations occurred, customers attempting to update configurations from 19:48 to 20:03 UTC may have also seen an error. Telemetry confirmed a final small window of possible impact.

Our engineers are completing a full retrospective of this incident, customers who would like the full Fastly Service Advisory may reach out to our Support team to ensure a copy is provided once completed.