Proxy here, Proxy there, Proxy is now everywhere.

The word proxy comes from Latin (*procuratio* = representation) and generally means representative, substitute, or intermediary – something that acts instead of you or on your behalf.

In different fields:

1. General / everyday use

Someone or something that represents you (e.g. “I sent a proxy to the meeting” = someone voted for me).

2. IT and internet (the most common meaning today)

Proxy server – a computer that stands between you and the internet.

  • Hides your IP address (anonymity)

  • Speeds up page loading (caching)

  • Bypasses blocks (e.g. school/firewall proxy)

Example: Using a VPN? That’s actually a special type of proxy.

3. Law and business

Proxy voting – when someone votes for you at a company meeting or shareholders’ meeting (you give them power of attorney).

4. Programming

Proxy pattern – a design pattern where one class represents another (e.g. controls access, logs calls, or delays loading heavy objects).

5. Science and ecology

Proxy data – an indirect indicator (e.g. in paleoclimatology: tree rings or ice isotopes serve as a “proxy” for temperature thousands of years ago).

Human summary:

Proxy always means something that works instead of something else. Today you hear it most often in the context of the internet (“use a proxy”).