This is a HTTP web proxy site built using an opensource php script know as PHP-Proxy. This works quite well for accessing youtube and other video sites’ and successfully bypass censorship. Can bypass censorship of Facebook, Youtube, Twitter or Google and any other sites with 99% accuracy unlike other common proxy websites out there. The script also encrypt the urls users open through this proxy.
Some of the really dynamic websites don’t work well with the script. For accessing those you need a full browser proxy or a VPN. So for example you may not be able to access Instagram properly through this free web based proxy. Check out how to make your own full browser proxy(shadowsocks). It is not free but it will be your personal solution to access free internet. It is faster, better and blend in with normal SSL traffic of websites thus harder to block.