Optimizely incident

Performance degration for image delivering, tracking and online version

Minor Resolved View vendor source →

Optimizely experienced a minor incident on August 6, 2026 affecting Tracking and Online versions of mailings and 1 more component, lasting 1h 24m. The incident has been resolved; the full update timeline is below.

Started
Aug 06, 2026, 03:04 PM UTC
Resolved
Aug 06, 2026, 04:28 PM UTC
Duration
1h 24m
Detected by Pingoru
Aug 06, 2026, 03:04 PM UTC

Affected components

TrackingOnline versions of mailingsHosting of images and files

Update timeline

  1. investigating Aug 06, 2026, 03:04 PM UTC

    We are currently investigating an issue with degraded performance for image delivery, processing of tracking requests and delivery of online version.

  2. identified Aug 06, 2026, 03:09 PM UTC

    We have put a mitigation at place, so the mentioned services should be fully available again. The problem started around 16:38 CEST. Mitigation was activated at 17:00 CEST. We are continuing to our investigation.

  3. monitoring Aug 06, 2026, 03:51 PM UTC

    The performance problems didn't show up again. The mitigation is no longer needed and will be removed. We are still monitoring.

  4. resolved Aug 06, 2026, 04:28 PM UTC

    Systems are running stable with the mitigation removed. The incident has been resolved.