Ever wonder if you're looking at Linux or Microsoft driven website? There are two ways to figure this out. The best way: go to Netcraft.co.uk put the domain name into the "What is that site running?" The fast way: change the case of one character in page name (e.g from "index.htm" to "Index.htm"). If you can see the same page, it's a Microsoft page. If you get a "Page Not Found" it's a Linux page.