A VPN, or virtual private network, creates an encrypted connection between your device and a remote server operated by the VPN provider, routing your internet traffic through that server rather than sending it directly to websites and services.

Because your traffic is encrypted and routed through the VPN server, websites you visit see the VPN server's location and IP address instead of your own, which is why VPNs are commonly used to mask a user's real location or identity online.

Encrypting Your Traffic Through a Remote Server

What a VPN Can and Can't Actually Protect

VPNs are particularly useful on public Wi-Fi networks, like those in cafes or airports, where encryption prevents other people on the same network from easily intercepting your unencrypted data as it travels between your device and the internet.

A VPN doesn't make someone completely anonymous or invisible online β€” the VPN provider itself can typically see your real traffic, and websites can still identify you through other means like login credentials, cookies, or browser fingerprinting.

Sources

  1. Wikipedia β€” overview of VPN technology and how it functions
  2. Electronic Frontier Foundation β€” privacy-focused background on VPNs and their limitations
  3. National Institute of Standards and Technology β€” technical background on network encryption standards

FAQ

Does a VPN make you completely anonymous online?

No β€” the VPN provider can typically see your real traffic, and websites can still identify you through logins, cookies, or browser fingerprinting.

Why are VPNs recommended on public Wi-Fi?

Because encryption prevents other people on the same network from easily intercepting your unencrypted data as it travels to and from your device.

Does a VPN change your apparent location online?

Yes β€” websites see the VPN server's location and IP address instead of your own, which is why VPNs are commonly used to mask a user's real location.

About the Author

We reference Wikipedia, Electronic Frontier Foundation, and National Institute of Standards and Technology to explain the background and current understanding of this topic.

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