Plus the script hasn't actually got a predefined set of sites it will work with, just methods... so in that sense it could easily be in the thousands. This whole site was created to be simple, I don't like complex things; after-all people say I'm a very simple person...
For those who care how this works, well it quite obviously scans for Meta refresh tags, or scans the headers from websites for location redirects (the most common type for short URL services), it also includes a mini robot which does a dance each time someone pops a URL into the box above... no really, it does. Think I'm lying? Fine test it... Then you can apologise to your computer for thinking someone on the internet would lie...