Optimizely outage history

We are investigating reports of elevated latency and intermittent errors affecting the CMS editing interface and background scheduled tasks across select DXP environments. We will continue to post updates as they come. Thank you for your understanding and cooperation.

We are continuing to investigate this issue.

We have identified the root cause of the performance degradation and are actively working on a fix. We will share further updates as more information becomes available. Thank you once again for your understanding and cooperation.

System performance has returned to normal levels, and the degradation has subsided. Our team is closely monitoring the environment to ensure continued stability

All services are performing normally and stability has been confirmed throughout the monitoring period.

We are currently investigating an event that is impacting performance of the graphical user interface.

The issue has been identified and a fix is being implemented.

After a new login the problem is solved.

This incident has been resolved.

ODP Reports, campaigns and exports are impacted due to a Snowflake EU incident. Real-time segments are unaffected.

Snowflake services in the EU are returning to normal operation. The data processing lag in ODP has cleared. We are monitoring the situation.

The Snowflake issue affecting the EU region has been resolved. Data processing has caught up, and reports, exports, segments, and campaigns are working normally. Recurring campaigns paused during the incident have resumed, and they have completed their missed runs.

We are investigating an issue causing delays when publishing experiments and other changes. Customers may see deployments remain in an "Uploading to CDN" state longer than expected before becoming available. Existing experiences continue to serve normally. Our engineering team is actively investigating the cause and working to restore normal publishing times.

We have identified the cause of the delayed publishing issue. A surge in snippet upload activity created a backlog in our processing queue, which resulted in extended "Uploading to CDN" times for some customers. Mitigation actions have been taken to stop the source of the backlog, and our engineering team is actively working to restore normal processing times. Existing experiences continue to operate normally. We are closely monitoring recovery and will provide further updates as progress continues.

We have resolved the issue that caused delayed publishing and extended "Uploading to CDN" times for some customers. Publishing requests are now processing normally. The issue was caused by a temporary backlog in snippet upload processing, which has been cleared. We apologize for the disruption and appreciate your patience while we worked to restore service. Existing experiences remained available throughout this issue.

Between 15:05 and 16:10 UTC on October 13, 2026, Data Platform customers in the US region experienced delayed data ingestion and elevated error rates on the GraphQL API. From about 15:20 to 16:07 UTC, most GraphQL API requests failed with HTTP 5xx errors or timeouts. Ingestion of new data was delayed by up to about 65 minutes. All delayed data accepted during the incident was processed by 16:10 UTC. Our engineers applied infrastructure changes that resolved the issue in the US region. The same changes have been applied to our other regions to prevent a similar issue there. We apologize for the disruption.

We have identified an issue affecting Content Graph. When content is published, cache eviction and webhook processing are not completing as expected. As a result, queries to Graph may return outdated content. Our team is actively investigating and we will provide an update as soon as we have more information.

The cache eviction and webhook delivery issues impacting Content Graph have been resolved. Stale content is no longer being served, and publishing workflows have returned to normal operation.

We're seeing delays in processing incoming data in the EU region. Campaigns that depend on recent data may be delayed or may not send. A fix is in place and data processing is back to normal. We're watching to make sure it stays stable.

We have identified the root cause and applied a mitigation. The service has returned to normal operation and we are actively monitoring to confirm stability.

This incident has been resolved as the service has remained healthy and stable since the mitigation was applied.

We are experiencing intermittent availability issue for the Optimizely Graph service impacting one of the USEA production clusters. Our team is working on mitigating actions.

We have identified the root cause and applied a mitigation. The service has returned to normal operation and we are actively monitoring to confirm stability.

The service has remained stable. The issue is now considered resolved.

We are currently investigating an issue affecting the Optimizely Content Marketing Platform (CMP), where data is failing to load across multiple modules — including Plan, Resources, and Library — for a subset of customers on the GCP stack. Our Engineering team has been engaged and is actively investigating the root cause. We understand the impact this has on your workflows and appreciate your patience while we work toward a resolution. We will provide a follow-up update as soon as new information becomes available.

The issue has been identified and a fix is being implemented

A fix has been implemented and we're now monitoring the results.

This incident has been resolved.

We are currently investigating this issue.

The issue has been identified, and a fix is being implemented.

A fix has been implemented, and we are monitoring the results.

This incident has been resolved.

Starting around 10:00 CEST processing of emails submitted via our SMTP API is delayed. We already identified the underlying problem and are in the process of fixing the issue.

The issue has been fixed and all delayed emails have been processed.

Customers on the AWS stack using the CMP Analytics module may notice that analytics data from September 3, 2026 to present is not visible in their dashboards. This is a display issue only — all data has been safely recorded and will be backfilled once the fix is deployed.

Analytics data should be visible in the CMP Analytics module. We are in an active monitoring phase to confirm full data restoration across all affected AWS stack customers. A final resolution update will be posted once monitoring is complete. If you are still not seeing analytics data, please contact our support team.

The issue has been resolved.

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.

We continue investigating login failures affecting some DXP environments. Affected applications may receive a certificate trust error when connecting to our login service. Affected customers cannot log in to the CMS management interface and are currently unable to create or edit content. 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.

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.

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!

A fix has been implemented and we are monitoring the results. Thank for your patience!

The issue has been resolved and the service is now operating normally. Thank you for your patience!

The CMP and DAM products are currently experiencing a critical service disruption affecting all users. Our Engineering teams have been engaged and are actively working to restore service with the highest priority. We understand the severity of this impact and sincerely apologize for the disruption to your operations. A further update will be provided as soon as there is a meaningful development to share.

Our Engineering teams have identified the root cause of the disruption affecting CMP and DAM. A fix is being actively implemented, and restoring full service remains our highest priority. We will provide a further update as soon as service has been restored. We apologize for the continued impact.

A fix has been implemented and we're currently monitoring the results. Both products should now be accessible.

CMP and DAM are fully operational. Our Engineering teams have confirmed sustained stability following remediation, and this incident is now closed. We apologize for the disruption and thank you for your patience.

A subset of Optimizely customers may experience connectivity issues or service degradation in the Southeast Asia region due to a network connectivity issue reported by our third-party provider. We will provide additional updates as soon as they become available. Thank you for your patience!

The third‑party provider has mitigated the issue. We are monitoring the results.

This incident has been resolved.

We are investigating reports of assets not appearing in the DAM following a successful upload in CMP. Our Engineering team is actively working to determine the cause and scope of impact. Uploaded assets are not believed to be lost — we will confirm this as the investigation progresses. We're trying our utmost to share another update as soon as possible.

A fix has been implemented and we're currently monitoring the results.

The incident has been resolved.

We're investigating DXP multiple environments returning error 503 - affecting only non-production environments.

Our Engineering team has identified the root cause and is actively working on a resolution.

We are implementing the fix and have confirmed the impact affects a limited subset of clients.

This incident has been resolved.

We have identified a platform-wide issue affecting PDF file preview generation within the Content Marketing Platform (CMP). Users attempting to preview PDF assets in the Library may encounter an error and be unable to view document previews. Our Engineering team has identified the root cause and is actively working on a resolution. Your files are safe and no data loss has occurred. We will continue to provide updates as we make progress toward a fix. Thank you for your patience.

A fix has been implemented and we are monitoring the results.

This incident has been resolved.

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

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.

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

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