Real user monitoring (RUM) is a passive monitoring technology that records all user interaction with a website or client interacting with a server or cloud-based application.[1] Monitoring actual user interaction with a website or an application is important to operators to determine if users are being served quickly and without errors and, if not, which part of a business process is failing.[2] Software as a service (SaaS) and application service providers (ASP) use RUM to monitor and manage service quality delivered to their clients.