Hmm.. URL followed by anything will return the same (not 404) page: http://rsr.io/hacker

Some info about the server:

< HTTP/1.1 200 OK < Date: Thu, 26 Dec 2013 09:47:29 GMT < Server: Apache/2.2.22 (Debian) < Content-Location: posts.php < Vary: negotiate,Accept-Encoding < TCN: choice < X-Powered-By: PHP/5.4.4-14 < Cache-Control: no-store, no-cache, must-revalidate, post-check=0, pre-check=0 < Content-Type: text/html

Thank you for the feedback. We haven't done any bug tracking yet rather than giving-in all our efforts in building a robust api and an easy-to-use and efficient front-end.

Ahh found it: http://rsr.io/login/

An about page would be a good idea.