I am going to be making a large site (like bbc, or cnn or other sites with many articles and links) and was wondering if there was technology (scripts, programs, methods) that can detect the speed of the users computer and in turn choose the low-bandwidth site (less pictures and gifs) for them, and if they have sufficient bandwidth, it automatically takes them to the normal sites displaying news thumbnails and such, is this possible? Thanks for your help, i greatly appreciate it. 
