Alert Fox is a new monitoring service that will let you know instantly if something is wrong with your site so that you can sort that out before things get out of hand.
Alert Fox can monitor much more than mere uptime and downtime – it can actually keep an eye on any navigation issue that might be preventing your users from getting the best from your site.
As a service, Alert Fox is able to keep tabs on the function and performance of websites (and applications) of every nature, and that includes those that use AJAX, Flash and Silverlight. That is something very interesting, because the problems originated by using Flash, Java or Silverlight applets are not detected that easily.
Two main monitoring services are provided: “Classic Website Monitoring” and “Transaction Web Monitoring”. Four packages are available in each and every case, of which one is absolutely free. Which paid service you will choose is going to depend on how complex your site is, the number of sensors that you want to be used and the frequency at which you want to have it checked.
AlertFox.com In Their Own Words
“AlertFox is a revolutionary new self-service website transaction monitoring service that is capable of keeping tabs on the function and performance of all websites, even those that use AJAX, Flash and Silverlight.”
Why AlertFox.com It Might Be A Killer
It can monitor and examine sites in ways that are much deeper than usual.
Some Questions About AlertFox.com
Can the paid plans be tried for free? 
