Siteimprove Outage History

The Siteimprove platform experienced SSO login failures affecting customers attempting to access siteimprove.com and my2.siteimprove.com, while users already logged in remained unaffected unless they logged out or their sessions expired. The development team identified the root cause and implemented a fix after 1.3 hours. The issue was fully resolved with SSO users able to log in without disruption.

The Siteimprove platform experienced login failures and disruptions for 4.8 hours, preventing new users from accessing the service via siteimprove.com and my2.us.siteimprove.com while causing existing logged-in users to encounter module loading issues and blank screens. The development team identified the root cause, implemented a fix, and restored full platform functionality.

Siteimprove experienced degraded performance affecting their crawler and link checker processing for 23.5 hours, causing scan delays and preventing Digital Certainty Index (DCI) scores and related metrics from updating normally. While sites continued to successfully enter the scan queue, processing times were significantly longer than expected. The development team identified and applied a fix, worked through the processing backlog, and fully restored normal operations.

A small group of Siteimprove customers experienced login failures and error messages when navigating between platform modules for 2.2 hours. The issue also prevented some users from seeing full access to their sites and groups. The development team identified and implemented a fix, restoring normal login functionality and full platform access.

Siteimprove experienced a crawler performance issue that caused delayed crawl starts and completions for some customers, along with unusual status updates in crawl history due to processing backlogs. The incident lasted approximately 7 days, during which the team implemented capacity increases and workload reductions to clear the queue buildup caused by temporary outages and resource constraints. The issue was resolved after implementing a fix and monitoring showed normal operations were restored.

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.

Siteimprove experienced degraded performance in their crawler and linkchecker services, where sites were successfully queued for scanning but some scans failed to complete properly. The issue affected a limited number of customers over a 28.1-hour period. The development team implemented a fix and monitored the results before fully resolving the incident.