How to change start url of my site?

Well, I have very annoying problem. When I tipe www.example-site.com, I would like to change url to http://ift.tt/1CF3Seb. I want to do that only for start page. How can i do that? Does anybody know?

I have done some research on google, but i did not find appropriate answer yet. I have tried something with .htaccess RewriteRule, but it messed up my other RewriteRule`s.

Thanks!