The Next Web reports about Shrturl.co and their maybe innocent fun?
It works like this: you visit shrturl.co, enter a page URL and press the big ‘Edit’ button. You’ll be redirected to a framed version of the target site which you can edit. You can change the text, add an image and do pretty much anything you want. When you are done improving (or defacing) your page you press ‘Save & Finish’ and you’ll get a custom shrturl.co pointing to your edited page.
Source: The Next Web