Our school blocked
www.planetarion.com because they're gay.
So we used npaweb01.planetarion.com to get round that. It'd be jpaweb01.planetarion.com now I guess, but the theory stands.
Either that or try using the IP as Struct suggests.
Or another old favourite was to put the page through an online translator and set the language to English, using the IP in case they filtered the word (but you might be able to just use the address).
Might feck things up, but worth a shot.