What Is a VPN and How Does It Work?

A VPN (Virtual Private Network) is a service that encrypts your internet connection and routes it through a remote server. The result: your online activity is private from your ISP, and websites see the VPN server's IP address instead of yours.

How a VPN works

When you connect to a VPN, your device builds an encrypted "tunnel" to a VPN server. Everything you send and receive passes through that tunnel:

Your traffic is encrypted on your device.
It travels to the VPN server, hiding it from your ISP and local network.
The server forwards your request to the website using its own IP address.
Responses come back through the same encrypted tunnel.

Because the website only ever sees the VPN server, your real IP and location stay hidden. You can verify this on our home page — connect to a VPN and your displayed IP will change.

What a VPN protects you from

ISP tracking — your provider can no longer see which sites you visit.
Public Wi-Fi snooping — encryption protects you on untrusted networks.
IP-based tracking and geo-restrictions — sites see the VPN's location.

What a VPN does not do

A VPN is a privacy tool, not total anonymity. It won't:

Stop you being tracked by cookies or by logging into accounts.
Protect you from malware or phishing.
Hide your activity from the VPN provider itself — so choose a trustworthy, no-logs provider.

How to choose a VPN

Look for a provider with a clear no-logs policy, strong encryption (such as WireGuard or OpenVPN), servers in the locations you need, and a good reputation for independent security audits.

VPN vs other privacy tools

A VPN is one of several ways to mask your IP. We compare it with proxies and Tor in our guide on how to hide your IP address.

Key takeaways

A VPN encrypts your traffic and hides your IP behind a server.
It protects against ISP tracking and public Wi-Fi snooping.
It is not full anonymity — cookies and logins can still identify you.
Choose an audited, no-logs provider you trust.