Detecting if a site is online.

[Logic Ali]

It's the random() part that's doing it, which is equivalent to what I gave you in the first place.

[Gray1989]

<META HTTP-EQUIV="CACHE-CONTROL" CONTENT="NO-CACHE">

I think you may be able to use this meta tag in order to prevent caching of the file, but you'd have to make it an html file. You can try using an iframe instead of an image but you should be able to use it in the same way. At least you won't have to use a random number with a "GET" request. Just a thought....