Types of Proxies and Why Use Them

When browsing the web there are many terms that may appear. We have a lot of options, functions and utilities in our day to day. There are many ways to connect to the network, many types of technologies that allow us in one way or another to improve different aspects such as security and privacy. In this article we are going to focus on proxies . Let’s talk about what a proxy is and what types there are.

What is a proxy?

First of all let’s start talking about what a proxy is . A proxy server is a server (it can be both a program and a physical device) that acts as an intermediary. It is placed between the request made by a client and another server that gives the answer. If we want to access an Internet server from a mobile phone where a web page is hosted, a proxy can act as an intermediary.

This allows you to gain more access control, record traffic or even restrict certain types of traffic. In this way we can improve security and performance, as well as have anonymity when accessing certain services.

One of the most common functions for which users use proxies is to bypass geographical restriction . That is, a proxy can act as intermediaries and make our connection appear elsewhere. In this way we can access content available only for a certain country or be able to see content that is not available in ours.

Proxy a través de Tor

What types of proxies exist

Now, we must bear in mind that there are different types of proxies. Let’s see which are the most common.

Web proxy

Without doubt one of the most popular proxy servers are the web . We are facing an option in which users can access through a web page. That website is what acts as a proxy. It is based on HTTP and HTTPS and acts as an intermediary to access other services on the Internet.

Through this website we can browse other sites. All that navigation passes through the web proxy we are using.

Cache proxy

Another option is that of a cache proxy server. In this case, this server acts as an intermediary between the network and the Internet to cache content. It can be static content such as HTML, CSS, images … It is used to accelerate the content of a site when browsing.

If a person enters a page a second time, that information they are loading may already be cached. This way you don’t need to download it again and it goes faster.

Reverse proxy

There are also the reverse proxies . It can be used to provide Internet access to a specific user within the network, offer some kind of cache or even act as a firewall and help improve security.

Transparent proxy

In this case, what the proxy does is to obtain the request we have given and give it a redirection without having to modify anything previously. It basically acts as an intermediary without modifying anything, hence the name it gets.

NAT proxy

One more option in terms of proxies is the NAT proxy . They are mainly used to mask the identity of users. Hide the true IP address to access the network. It has varied configurations.

In short, these are the main types of proxies that we can find. As we see there are a variety of options and each of them can have a different use for users. All of them act as intermediaries between the user (mobile device, computer …) and a server. They can help to improve security and privacy, as well as to obtain different functions when surfing the net.