Siteimprove experienced a major incident on February 27, 2026 affecting Platform, lasting 48m. The incident has been resolved; the full update timeline is below.
Affected components
Update timeline
- investigating Feb 27, 2026, 02:49 PM UTC
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.
- identified Feb 27, 2026, 02:59 PM UTC
We’ve found the issue and we’re working on a fix. Thanks for your patience!
- monitoring Feb 27, 2026, 03:09 PM UTC
A fix has been implemented. Customers should now be able to login successfully.
- resolved Feb 27, 2026, 03:37 PM UTC
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.