As you browse the internet, your device tells every site it visits its identity: your IP address. A proxy is the oldest and most practical way of changing that identity. In this article we explain the proxy concept from scratch, without drowning you in technical jargon.
The Definition of a Proxy
A proxy (proxy server) is an intermediary computer that sits between your device and the internet. Normally your browser connects to a site directly; when you use a proxy, the request goes first to the proxy server, and the proxy forwards that request with its own IP address to the site and passes the returning response back to you. The site sees the proxy in front of it, not you.
To use an analogy: instead of going to a shop yourself, you send a friend. The shop sees only your friend; it does not know they are shopping on your behalf.
How Does a Proxy Work? Step by Step
- You define a proxy address in your browser or application (e.g.
185.93.68.14:8080). - When you want to visit a site, the request goes to the proxy server.
- The proxy forwards the request to the target site with its own IP.
- The site's response goes first to the proxy, and from there back to you.
- The site's logs contain the proxy's IP, not yours.
This whole process happens within milliseconds; the only difference in user experience is the small delay added along the way.
Proxy Types
| Type | IP Source | Key Feature |
|---|---|---|
| Residential | Real home users | The hardest type to detect |
| ISP (Static Residential) | ISP-registered datacenter | Static IP + high speed |
| Mobile (4G/5G) | Mobile carriers | The highest trust score |
| Datacenter | Data centers | The fastest and the cheapest |
| Rotating | Pool (variable) | A different IP on every request |
| IPv6 | IPv6 blocks | Enormous quantity, low cost |
What Is a Proxy Used For?
- Privacy: Hiding your real IP from sites.
- Geographic access: Viewing content as if you were a user in a different country.
- Data collection: Crawling large numbers of pages without being blocked (web scraping).
- Multi-account management: Running each account with a separate IP identity.
- Corporate control: Access filtering and caching on company networks.
The Advantages and Limits of Using a Proxy
Advantages: fast setup, per-application flexibility (you can route only the program you want through the proxy), a wide range of type options and affordable cost. Limits: a proxy does not encrypt traffic by default — encryption comes from upper layers such as HTTPS. For those who want to put all of a device's traffic into an encrypted tunnel, a VPN is a different tool; for a comparison of the two technologies, see the difference between a proxy and a VPN article for details.
Where Should You Start?
The easiest way to try the concept is to use a free address: our up-to-date free proxy list — pick an IP from it, our setup guide — define it in your browser, and My IP Address page, observe the change there. For regular or commercial use, paid packages offer a guarantee of speed and continuity.