server info website

["Carl Wilhelm Soderstrom" <carls@agritech.com>]

        what's the URL of that website where you can put a URL of a
webserver into a CGI and it will return you some information about that
machine (what webserver software, which OS)?
        they've mentioned it on slashdot, but I never bookmarked it, and I
can't find a good search string for slashdot to locate an article that
mentions it.

thanks,
Carl Soderstrom
System Administrator	307 Brighton Ave. 
Minnesota DHIA		Buffalo, MN	
carls@agritech.com	(612) 682-1091