Today, proxy servers are mainly used to hide the true IP address. There can be several reasons for this. The most popular are the desire to visit a website whose access is blocked for your IP, and the need to send e-mail anonymously. There are a few more reasons when you need a proxy:
Protecting your network or local computer from certain types of network attacks and the need to protect confidential information;
limiting user access to certain types of web resources. It is practiced in companies to prevent employees from wasting their time;
desire to connect several computers to the Internet when only one IP address is available. The settings can be made in such a way that information about local machines will be hidden from external machines, they will only be able to see the intermediary.
But the most important thing is to buy a proxy that will perfectly perform all these tasks. For example, a good option would be
proxybox.org.