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The Difference between Socks4 and Socks5 Proxies


Socks proxies are a popular type of proxy used for both personal and business use. There are two main types of socks proxies: Socks4 and Socks5. While they may seem similar, they have several key differences that set them apart. In this article, we'll explore the differences between Socks4 and Socks5 proxies to help you make an informed decision when choosing a proxy.

Socks4 Proxies

Socks4 is the original socks proxy protocol, released in 1990. It was designed as a simple way to route network traffic between a client and a server. Socks4 proxies are only capable of handling TCP connections and do not support UDP or other protocols. They also do not have the ability to authenticate users, which can lead to security issues.

Socks5 Proxies

Socks5, the successor to Socks4, was released in 1996 and added several new features. Unlike Socks4, Socks5 proxies can handle both TCP and UDP connections, making them more versatile. They also have built-in authentication, which makes them more secure than Socks4 proxies. Additionally, Socks5 proxies can handle domain name resolution, which means they can resolve hostnames to IP addresses without having to use a separate DNS server.


In conclusion, while both Socks4 and Socks5 proxies can route network traffic, Socks5 proxies offer several advantages over Socks4 proxies. They are more versatile, secure, and efficient. When choosing a socks proxy, it's recommended to go with a Socks5 proxy for the best possible experience.