The service leet.lrem.net is shut down for good.

It was a toy for translating a web page on the fly to l33t spe4k. Moderate fun, got somewhat popular. Written in C++, quite efficient. Unfortunately I had to shut it down due to a security bug and no time to fix it.

I don't suppose I will ever get back to this idea. Go find another implementation, I've seen someone doing something similar at the time this disappeared. Unfortunately my source code has been lost (well, it is somewhere...), so don't offer help.