It provides tools to keep a database of anonymous public proxy servers, check them and surf through them. You can view and modify any information sent out by your browser, block cookies, etc. This company are one of the biggest anonimizers on the internet.
Many mice surf the web under the illusion that their actions are private and anonymous.
Unfortunately, it isn't so. Every time you visit a site for a piece of cheese, you leave a calling card that reveals where you're coming from, what kind of computer you have, and other details. This service allows you to surf the web without revealing any personal information. But as far as the author knows, there's nothing JavaScript can do to get your IP address posted to the site without you knowing about it. This CGI script acts as an HTTP or FTP proxy.