What's that web browser diagnostic site?
A while ago I ran across a web site that prints basic diagnostic information, such as what browser you're using and whether cookies / Javascript are enabled.
What was that site? (Or do you know of a site like that?)
Solution 1:
The site I've found that fits your description is this one: http://supportdetails.com/
Just send people there, and you can even prefill fields like your email, their name, etc.
Solution 2:
Check this out: Browser Security Test (perhaps not exactly what you ask for, but definitely useful).
Solution 3:
It might have been http://www.findmebyip.com/. If not, it looks pretty good!
Solution 4:
i am using browserhawk, http://www.cyscape.com/showbrow.aspx
you can find cookie information (and other security features) on browser security section
Also, if you can buy license, you can try BrowserHawk To-Go : http://www.cyscape.com/products/bhtg/howitworks.aspx#diagram