Technical guides to proxy protocols including HTTP, HTTPS, SOCKS5, and more. Understand the differences and pick the right protocol for your use case.
The HTTP CONNECT method transforms an HTTP proxy into a generic TCP tunnel. Originally designed for HTTPS, CONNECT enables any TCP protocol to traverse an HTTP proxy by establishing a transparent bidirectional byte stream.
The HTTP proxy protocol is the most widely used proxy method for web traffic. It operates at the application layer and understands HTTP semantics, enabling intelligent request routing and content filtering.
A detailed comparison of HTTP and SOCKS5 proxy protocols. Understand the trade-offs in protocol support, performance, security, and use case fit to make the right choice for your infrastructure.
HTTPS proxies provide encrypted end-to-end tunneling between client and destination. The proxy establishes a secure tunnel using the HTTP CONNECT method, ensuring that interceptors — including the proxy itself — cannot read the payload.
Proxy authentication determines how clients prove their identity to a proxy server. This guide covers all major authentication methods — Basic, Digest, IP whitelisting, and token-based — with security trade-offs and implementation guidance.
Proxy chaining routes traffic through two or more proxy servers in sequence, creating a multi-hop path that enhances anonymity, bypasses layered restrictions, and enables complex routing topologies. This guide covers the protocols, architectures, and trade-offs of proxy chains.
SOCKS4 is a transport-layer proxy protocol that routes TCP connections through a proxy server without understanding the application-level protocol. It provides basic TCP proxying with IP-based authentication.
SOCKS5 is the most versatile proxy protocol, supporting TCP and UDP traffic, IPv6, multiple authentication methods, and proxy-side DNS resolution. It operates at the session layer, enabling protocol-agnostic proxying for any application.
We use cookies to ensure the best experience. You can customize your preferences below. Learn more