I went to the website greatfirewallofchina.com today to notice that they no longer have their too available for use, before they would let you type in a url of a website and they would tell you if it was blocked or not in china. I really like that site so I was wondering how I could make my own website that would let people check to see if a website was blocked in china, I can do html stuff but I have no idea really how this site worked.
You want to get involved with the Chinese security staff??? Why I am not sure...(you wonder why that site went down? ) Anyway, I believe that they had a server in china, and every time somebody typed in a url, the server in china detected weather it could view the contents, and then If it couldn't it returned a message back to the person who typed in the URL. Either that, or they had an up to date db of all the sites that are blocked (which would be near impossible to get). So, even if you get it all set up and working, it won't last long....and you may mysteriously 'disappear'