A friend has asked me this, and I couldn't answer.
He asked: I am making this site where you can archive your site...
It works like this, you enter your site like, something.com and then our site grabs the content on that website like images, and all that and uploads it to our site. Then people can view an exact copy of the site at oursite.com/something.com even if the server that is holding up something.com is down.
How could he do this? (php?) and what would be some requirements?