"Real browser monitoring is a must." Lenny Rachitsky, TransparentUptime.com

AlertFox Real Browser Monitoring: find problems before your end-users do!

Using AlertFox’s Web performance testing and monitoring service you can identify common problems such as slow Web response times, failed transactions or time outs, bugs in Ajax, Flash or Silverlight front-end applets, or even different user experiences in different locations or browsers.

See AlertFox in action below:

I. Applet related issues - Problems that relate to videos, interactive maps, graphs or navigation elements

Classic sees JavaScript AlertFox sees the map
Classic monitoring is only about HTML and JavaScript. It cannot execute or test Javascript, AJAX or modern HTML5 code. E.g. if a map is embedded into a site, classic monitoring may only check the URLs within that embedded code. AlertFox Real Browser Monitoring can interact with the map. It can zoom in, pan around and is even able to check whether the red marker is at the right location. AlertFox can test HTML, HTML5 and also Java, Silverlight and Flash applets (e. g. Youtube).

II: Visual glitches - Misplaced Images, Wrong Images, Layout Errors

Classic monitoring sees the IMG tag AlertFox sees the image
Concerning images, classic monitoring can  only access the HTML code of the IMG tag. For example, it can check whether the filename is correct. AlertFox Real Browser Monitoring "sees" the image. It has access to the fully rendered page. It checks whether the right image is shown. At the right place. AlertFox uses state-of-the-art image recognition to "look" at a website - just like a real human does.

III: Complex Functionality - Broken Credit Card Payment Process, Misbehaving Virtual Shopping Carts

Classic sees JavaScript AlertFox automates all steps and can compare prices
Classic monitoring is limited to the JavaScript source code. It cannot run the Javascript code. AlertFox Real Browser Monitoring has access to the fully rendered content. It can automate all checkout steps and can even check the final price, for example. It can also automate and test complex AJAX (e. g. Facebook, Gmail or Google Documents).