BMC TrueSight Real User Monitoring Enterprise by BMC.TrueSight.DSO

The JavaScript plugin can collect metrics data from all the websites you visit
The JavaScript plugin can collect metrics data from your web applications.
BMC TrueSight App Visibility Manager end-user monitoring provides visibility into end-to-end transaction time and availability, and browser page performance and availability, for your web-based applications.
End-user data enables you to detect and respond when users are experiencing slow response times and outages.
With TrueSight App Visibility Manager, you can monitor end-to-end transaction time and identify problematic parts (such as Ajax requests) of a web page.