Expand a short URL

This is a useful website for checking the final destination of a short URL like http://bit.ly/dzndHk.

If you wanna know the true address of this short link you should visit the link or use this website:

http://knowurl.com/

There are a Chrome Extension and a mobile app for this purpose.

My old trick to show where a short url redirects is to open it in a new notepad file.
Notepad> File > Open > insert URL and OK... the result is the HTML source code of the destination page.