Web-based Proxy Servers

Web proxy servers represent a usual web-pages, very similar to pages of search engines. They allow a user to access other sites through them. They generally use PHP or CGI to implement the proxying functionality. CGI proxies are frequently used to gain access to web sites blocked by corporate or school proxies. Since they usually hide the user's own IP address from the web sites they access through the proxy, they are also used to gain a degree of anonymity.

Web proxy servers can be divided into three types according to anonymity level.

1. Transparent. They do not hide information about your IP address. Usable mainly for transfer speed improvement.
2. Anonymous. Do not send any variables with your real IP to host, but they send variables indicating that you are using proxy.
3. High Anonymity. Do not send ANY variables indicating that you are using proxy server to host.

Using web proxy servers, you can anonymously surf all over the Internet, without changing settings of your browser and without using any additional programs.

CGI proxy supports HTTP and (sometimes) FTP and HTTPS protocols.

How to use web proxy?

For use of a web proxy you do not need to change your browser settings, to install additional programs or to make something else more complex. It is enough, if one opens a web page of CGI proxy in a browser, enters a required URL into the address field and press the "Go" button. The disadvantages in usage of the CGI proxies are presence of additional advertising (which adds a CGI proxy itself, they simply exist at the expense of such advertising), a limited FTP / HTTPS support (not always supported) and sometimes a CGI proxy do not allow to view pictures.

Web proxy chaining.

Creating a chain from free web anonymizers (CGI proxy) is a very simple thing. It would be enough in one CGI proxy to type an address (URL) of another CGI proxy and to press "Go". The same way it is possible to use 3d, 4th, 5th... proxy servers. In last proxy of a chain just type URL of a required site and browse a site you need.

What additional abilities does a CGI proxy have?

Unlike other types of proxy servers CGI proxies have considerably wider abilities as for information filtering.
For example they can:

* Prohibit execution of active content (scripts) on a page - JavaScript, etc.
* Prohibit (or to leave only for itself, without passing to a client) cookie files.
* Encode URL to which a request is addressed.
* And more...