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Outage in Siteimprove

Siteimprove Platform Login Errors

Resolved Major
February 27, 2026 - Started 2 months ago - Lasted about 1 hour
Official incident page

Incident Report

Summary AI Generated

The Siteimprove platform experienced login failures for some customers attempting to access the service through siteimprove.com and my2.siteimprove.com, with users receiving "Authentication failed: SubscriptionAccess could not be built" error messages. Users who were already logged in remained unaffected unless they logged out or their sessions expired. The issue was resolved after 52 minutes with a fix implemented by the development team.

We are currently experiencing issues where some customers are unable to log in to the Siteimprove platform through siteimprove.com and my2.siteimprove.com. Impact: - Users who are already logged in should not experience disruption unless they log out or their session times out. - New login attempts may fail. - Users are seeing the following error message: Authentication failed: SubscriptionAccess could not be built. TraceId: xxxx Our Development Team is actively working to identify the root cause and resolve the issue as quickly as possible. We apologize for this inconvenience. We'll continue to keep you updated.
Components affected
Siteimprove Platform

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Latest Updates ( sorted recent to last )
RESOLVED 2 months ago - at 02/27/2026 03:37PM

The issue that prevented certain Siteimprove customers from logging in has been resolved.

If you have any additional questions or feedback, please submit a new support ticket through our Help Center ("?" button) located at the top right-hand-side of the Siteimprove platform.

MONITORING 2 months ago - at 02/27/2026 03:09PM

A fix has been implemented.

Customers should now be able to login successfully.

IDENTIFIED 2 months ago - at 02/27/2026 02:59PM

We’ve found the issue and we’re working on a fix. Thanks for your patience!

INVESTIGATING 2 months ago - at 02/27/2026 02:49PM

We are currently experiencing issues where some customers are unable to log in to the Siteimprove platform through siteimprove.com and my2.siteimprove.com.

Impact:

- Users who are already logged in should not experience disruption unless they log out or their session times out.
- New login attempts may fail.
- Users are seeing the following error message: Authentication failed: SubscriptionAccess could not be built. TraceId: xxxx

Our Development Team is actively working to identify the root cause and resolve the issue as quickly as possible.

We apologize for this inconvenience. We'll continue to keep you updated.

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