Scivisum

Designed for testing out the relative performance of websites and web applications, Scivisum is a cloud-based service used by small businesses and huge brands alike, with customers including Thomas Cook, Cineworld and Epson. Their service dissects into three main parts: Website Performance Monitoring, Website Load Testing and Mobile Web & App Monitoring respectively. Scivisum allows you to keep track of performance in a real-time environment, so you can see how visitors are interacting with your websites in the here and now. This is great for flagging up any problems that might arise, helping you weed out the performance leaks that could be losing you traffic and conversions.

http://www.scivisum.co.uk/