What is a Proxy? Complete Beginner's Guide
Learn what proxy servers are, how they work, and why millions of people use them for privacy, security, and access control.
What is a Proxy Server?
A proxy server acts as an intermediary between your device and the internet. When you use a proxy, your web requests go through the proxy server first, which then forwards them to the destination website. The website sees the proxy's IP address instead of yours.
Think of it like sending a letter through a friend — the recipient sees your friend's return address, not yours.
How Do Proxy Servers Work?
Here's the typical flow when using a proxy:
- 1. You configure your browser or app to use a proxy server (IP + port)
- 2. Your request goes to the proxy server instead of directly to the website
- 3. The proxy forwards your request to the target website
- 4. The website responds to the proxy server
- 5. The proxy sends the response back to you
Types of Proxy Servers
By Protocol
Handles standard web traffic. Simple and widely supported.
Supports encrypted SSL/TLS connections. More secure.
Protocol-agnostic. Routes TCP traffic without modification.
Most versatile. Supports TCP, UDP, authentication, and IPv6.
By Anonymity Level
- Transparent: The target website knows your real IP and that you're using a proxy. Used mainly for caching and filtering.
- Anonymous: Hides your IP but the website can detect you're using a proxy through headers.
- Elite (High Anonymous): Completely hides both your IP and the fact that you're using a proxy. Maximum privacy.
Why Use a Proxy?
- Privacy: Hide your IP address from websites you visit
- Access Control: Bypass geographic restrictions on content
- Web Scraping: Rotate IPs to avoid rate limiting and bans
- Security: Add a layer between you and potentially harmful websites
- Testing: Test how your website appears from different locations
Getting Started
You can browse our free proxy list to find working proxies. Use the proxy checker to test if a proxy is alive before using it.