'redirect' with fragment like /#.UxDriZj_4yI

JavaScript
1

Hi,
I jumped into this good tutorial

but I don’t really know what’s the hell is going
on the url if you put in the browser

there is a sort of redirect to
http://mherman.org/blog/2014/02/19/node-twitter-sentiment/#.UxDriZj_4yI

and there is no angular code

so I’m wondering what’s it for ?

thanks in advance