Outage in Optimizely

Brief service interruption due to network availability

Resolved Minor
December 19, 2025 - Started 27 days ago - Lasted about 2 hours
Official incident page

Incident Report

A subset of Optimizely customers experienced a short service interruption due to a network availability issue reported by our third-party provider, Cloudflare. The issue has cleared, and we are not currently observing any site outages. Cloudflare is investigating intermittent network performance issues, and we are monitoring closely for any further impact.

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Latest Updates ( sorted recent to last )
RESOLVED 27 days ago - at 12/19/2025 02:04PM

Incident has been resolved by Cloudflare.

MONITORING 27 days ago - at 12/19/2025 01:48PM

Cloudflare continuing to monitor for any further issues. Thank you for your patience!

MONITORING 27 days ago - at 12/19/2025 01:10PM

Cloudflare have entered an extended observation period to ensure the integrity of the fix. Thank you for your patience!

MONITORING 27 days ago - at 12/19/2025 12:42PM

Cloudflare implemented a fix and we are monitoring the results. Thank you for your patience!

IDENTIFIED 27 days ago - at 12/19/2025 12:19PM

While the earlier issue appeared resolved, we have since received additional alerts indicating intermittent availability issues for a subset of customers. Cloudflare continues to investigate network performance issues that may result in unexpected errors. We are actively monitoring and working to mitigate any customer impact.

More updates to follow. Thank you for your patience!

INVESTIGATING 27 days ago - at 12/19/2025 12:06PM

Cloudflare continuing to investigate this issue and we are monitoring closely for any further impact.

IDENTIFIED 27 days ago - at 12/19/2025 12:06PM

While the earlier issue appeared resolved, we have since received additional alerts indicating intermittent availability issues for a subset of customers. Cloudflare continues to investigate network performance issues that may result in unexpected errors. We are actively monitoring and working to mitigate any customer impact.

More updates to follow.

MONITORING 27 days ago - at 12/19/2025 11:47AM

A subset of Optimizely customers experienced a short service interruption due to a network availability issue reported by our third-party provider, Cloudflare.

The issue has cleared, and we are not currently observing any site outages. Cloudflare is investigating intermittent network performance issues, and we are monitoring closely for any further impact.

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