Protect against someone hosting your game without permission

Hi,
I am currently developing for web player and I want to control where the game is hosted and what website it is played from, I was wondering how it is best to protect against someone downloading the ".unity3d" file and host the game on his side, at least to be able to track where the game was loaded or from which page it is played.

 

You probebly like to take a look at this : Application.absoluteURL
http://docs.unity3d.com/ScriptReference/Application-absoluteURL.html

 

Thanks ! this will work

 

One thing, dose this also work on Facebook canvas ?

 

Im not sure how Facbook handles the integration of the unity webplayer.
You can test upload a webplayer and see what Application.absoluteURL gives you back.

 

how protect at the fgl.com ?
when i upload game, fgl.com make new unique file location.

 

I don't know fgl.com but this counts in general:
Can you upload a test version of your game?
That way you could analyse how the address is build up and build a test for the full URL or a part of it if the URL is dynamicly changing.