Skip to content
Get Started
G2G2
4.7/5
Excellent
Trustpilot

What Is a Proxy Server?

A proxy server is a computer that relays network traffic between a client and the servers it talks to. The client connects to the proxy, the proxy connects to the destination, and the destination sees the proxy's IP address rather than the client's.

  • Session Control
  • High Speed
  • Privacy First
Best fit for Proxy serverStatic ISP Proxiesfrom$0.75/IP
how it works

How a proxy server works

A connection through a proxy has two legs: client to proxy, and proxy to destination. The client tells the proxy where to go using a proxy protocol, and the proxy opens the second leg from its own network.

Because the destination sees the exit IP, the network behind that IP shapes how the request is treated. A proxy on a hosting provider's ASN looks like a server; one on a consumer ISP or mobile carrier ASN looks like a household or a phone.

Proxy server: key points
  • HTTP proxies receive web requests and forward them, using CONNECT tunnels for https:// sites.
  • SOCKS5 proxies relay TCP connections for any protocol.
  • The proxy's outbound address, the exit IP, is what websites log, rate-limit and look up.
why it matters

Why the choice of proxy server matters

Choosing a proxy server mostly means choosing an exit network, an assignment model and an authentication method.

Proxy server: what it means for you
  • Static or rotating: a static IP keeps one identity for a whole session; a rotating pool spreads requests over many IPs.
  • Dedicated or shared: a dedicated IP's reputation is shaped only by your own traffic.
  • Authentication: username and password, or IP whitelisting for fixed servers.
  • Test before you scale: run a sample of IPs through the proxy checker for speed, location and ISP.
side by side

Types of proxy server

  • Datacenter

    Exit IP comes from
    Hosting and cloud ASNs
    Typical use
    Bulk tasks on lenient sites
  • ISP (static residential)

    Exit IP comes from
    Consumer ISP ASNs, hosted in data centres
    Typical use
    Long sessions, managing your own accounts, SERP tracking
  • 3

    Rotating residential

    Exit IP comes from
    Home connections in a large pool
    Typical use
    Wide geo coverage and public data collection
  • Mobile

    Exit IP comes from
    4G/5G carrier networks
    Typical use
    Mobile app QA and ad verification

The ISP vs residential vs datacenter guide compares them in depth. CleanProxies static ISP proxies are dedicated proxy servers on US carrier ASNs with unlimited bandwidth, as low as $0.75 per IP.

Static ISP proxies from $0.75/IP

The CleanProxies proxy that fits best here, with a $4.99 trial to test it first.

Dedicated IPs on US carrier ASNs with unlimited bandwidth and threads, never shared.

starting from$0.75/IP

Dedicated static IPs registered to US and Canadian ISPs. The address stays the same for as long as you hold it, with unlimited bandwidth and HTTP(S) or SOCKS5 access.

Guides from the blog

Setup guides and best practices from the CleanProxies blog.

Get the latest insightsAll Blogs

Related terms

Terms that come up alongside Proxy server.

All glossary terms

Proxy server FAQs

Straight answers about Proxy server.

Common uses are collecting public web data, monitoring prices, tracking search rankings, verifying ads in other locations, testing your own site from different regions, and filtering traffic on company networks.

Got more questions?All FAQs