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Outage in Optimizely

Increased Error Rate While Viewing Web Experimentation Project Listing

Resolved Major
November 19, 2025 - Started 4 months ago - Lasted 1 day
Official incident page

Incident Report

We're currently investigating an issue where some users are encountering an error message while accessing the project listing for Web Experimentation projects.
Components affected
Optimizely App UI

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Latest Updates ( sorted recent to last )
RESOLVED 4 months ago - at 11/21/2025 01:42AM

This incident has been resolved.

MONITORING 4 months ago - at 11/20/2025 04:55PM

The restoration of filtering capabilities is complete. We are monitoring capabilities post-resolution to ensure continued expected behavior.

MONITORING 4 months ago - at 11/20/2025 12:21PM

We're continuing to test and evaluate the completeness of the recovery process.

MONITORING 4 months ago - at 11/20/2025 06:37AM

We are continuing to monitor the recovery of filtering capabilities in the application, which is proceeding.

IDENTIFIED 4 months ago - at 11/20/2025 01:55AM

Filtering capabilities continue to be restored and we continue to monitor the process. Thank you for your patience.

IDENTIFIED 4 months ago - at 11/19/2025 10:25PM

The issue with filtering capabilities is continuing to gradually resolve. We will continue to update as this process progresses.

IDENTIFIED 4 months ago - at 11/19/2025 09:28PM

We are continuing to work on a fix for this issue. The occurrence of errors is declining however some filtering capabilities may not behave as expected.

IDENTIFIED 4 months ago - at 11/19/2025 08:57PM

This will also affect the 'Audiences' search picker component within the FX 'Configure Rule' panel UI as that also relies on the same search system.

IDENTIFIED 4 months ago - at 11/19/2025 08:14PM

We have identified an issue related to underlying search functionality supporting some user experience areas and our search API. We're working on a fix now.

INVESTIGATING 4 months ago - at 11/19/2025 08:03PM

We're currently investigating an issue where some users are encountering an error message while accessing the project listing for Web Experimentation projects.

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