A proxy server acts as an intermediary between you and the desired website, so traffic from your web browser seems to come from the remote computer rather than your own.
Proxy servers offer different levels of functionality, security and privacy, depending on the application, requirements or company policies. A good proxy server protects users and the internal network from bad things that happen on the Internet.
It works by placing itself in the flow of your Internet traffic. The proxy server will connect, download the data and give it to you, as a result of which the proxy server will look like a real guest of our site, not your computer.
When you connect to a proxy server, it requests files or web pages from an external web server. If the request is assumed to be from a specific region according to the IP address, the files or websites are returned to the proxy server. The proxy server then sends them to you. A proxy server can filter content that enters the network and protect your identity so that the destination web server never knows who made the request.
For example, if you want to watch Netflix while you are in China, you can connect to a proxy server to get the US IP address and access the content.
For businesses, proxy servers are used to simplify security, administrative control, or caching services. For individual users, they use a proxy server to gain private access to the Internet. However, the proxy server can also be used to record user activity. If you browse the Internet anonymously, you are not anonymous to the proxy server you are connecting to, so you must choose a trustworthy proxy to unlock websites. Many proxy servers collect and sell user data to third parties to get revenue.
You can also combine a proxy server with a virtual private network to ensure security and privacy on the Internet.