Optimizely incident
SSL trust issue causing login failures across multiple DXP environments
Optimizely experienced a major incident on September 2, 2026 affecting Australia East and East US, lasting 7h 18m. The incident has been resolved; the full update timeline is below.
Affected components
Update timeline
- investigating Sep 02, 2026, 08:05 AM UTC
We are currently investigating an SSL trust issue causing login failures across multiple DXP environments and working on mitigating actions. We will provide new updates.
- identified Sep 02, 2026, 08:51 AM UTC
We continue investigating login failures affecting some DXP environments. Affected applications may receive a certificate trust error when connecting to our login service. The issue appears to affect applications running on older OS images and .NET versions earlier than .NET 8. Applications on .NET 8 or later seems not impacted based on the reports. Restarting the web application does not resolve the issue. Our engineering teams are working on a service-side resolution. Impacted regions are still being confirmed. We will continue to provide further updates.
- identified Sep 02, 2026, 10:26 AM UTC
We continue to actively work on measures to restore normal operations as quickly as possible. Our investigation has identified a probable root cause, and our team is currently working to resolve it. We are closely monitoring the situation and will continue to provide updates as we make progress. Thank you for your patience and understanding.
- identified Sep 02, 2026, 11:35 AM UTC
We are continuing to work on fix for this issue. We will let you know as soon we have new updates. Thank you for your patience!
- monitoring Sep 02, 2026, 12:15 PM UTC
A fix has been implemented and we are monitoring the results. Thank for your patience!
- resolved Sep 02, 2026, 03:23 PM UTC
The issue has been resolved and the service is now operating normally. Thank you for your patience!