The delay in the tester dashboard's domain access was caused by a denial-of-service (DoS) attack targeting our domain subprocessor (Domeneshop). The attack overwhelmed their servers, resulting in slow loading times for accessing the tester dashboard. However, the subprocessor has taken corrective actions, and the service should now be stable. The issue was not related to any vulnerability on Testflows side, and there is no action required from us to prevent it in the future.