Blocking youtube broxies

[just_david]

Stumbles on a new way our students our getting around our proxy to access youtube:

MP3Juices - Free MP3 Downloads

 

Now I'm loathe to just block this website, as a quick google has thousands of results for websites with a similar enough name that it'd be like playing whack a mole.

 

Now we've noticed the all run on yt-downloader.com to get around it.

Is it possible to block that?

we've tried but so far its not really stuck.

 

youtube is blocked for the students anyway so we're not fussed about breaking that.