What Is a VPN?
A VPN (Virtual Private Network) is a technology that creates an encrypted tunnel between your device and the internet. Instead of connecting directly to websites, your traffic is routed through a VPN server – hiding your real IP address and protecting your data from prying eyes.
Think of it like this: instead of walking down the street in plain sight, you travel through a private underground tunnel that nobody else can see into.
How Does a VPN Work?
When you activate a VPN:
- Your device connects to a VPN server (in a location of your choice)
- All your internet traffic is encrypted before leaving your device
- Websites and services see the VPN server's IP address, not yours
- Your ISP can only see that you're connected to a VPN – not what you're doing
Why Use a VPN?
Privacy Protection
Your ISP, advertisers and potential hackers cannot monitor your online activity. This is especially important on public Wi-Fi networks (cafés, airports, hotels).
Bypassing Geo-Restrictions
Some content is only available in certain countries (Netflix libraries, streaming services, news sites). A VPN lets you appear to be in a different country.
Security on Public Wi-Fi
Public networks are notoriously insecure. A VPN encrypts your connection, making it useless for attackers even if they intercept your data.
Remote Work
Companies use VPNs to give employees secure access to internal networks and resources from home or while traveling.
VPN Protocols
Different VPNs use different protocols – each with its own trade-offs:
| Protocol | Speed | Security | Notes |
|---|---|---|---|
| WireGuard | Very fast | Excellent | Modern, recommended |
| OpenVPN | Medium | Very good | Open-source, well-tested |
| IKEv2/IPSec | Fast | Good | Great for mobile |
| L2TP/IPSec | Medium | Medium | Getting outdated |
What a VPN Does NOT Do
A VPN is a powerful privacy tool, but it has limits:
- ❌ A VPN does not make you completely anonymous – your VPN provider can still see your traffic
- ❌ A VPN does not protect against malware or phishing
- ❌ A VPN does not prevent tracking via cookies or browser fingerprinting
- ❌ A VPN does not hide your identity from services you're logged into
Choosing a VPN
When selecting a VPN service, look for:
- No-logs policy – the provider should not store records of your activity
- Jurisdiction – providers in privacy-friendly countries are preferable
- Open-source or audited – independently verified security
- Kill switch – cuts your internet if the VPN disconnects, preventing IP leaks
- DNS leak protection – ensures DNS requests don't bypass the VPN tunnel
Free vs. Paid VPNs
| Free VPN | Paid VPN | |
|---|---|---|
| Cost | Free | ~3–12 €/month |
| Speed | Often slow | Fast |
| Data limit | Usually limited | Unlimited |
| Privacy | Often sells user data | No-logs policy |
| Servers | Few locations | Many countries |
In general: free VPNs often monetize through your data. For serious privacy needs, a reputable paid VPN is worth the investment.
Check If Your VPN Is Working
After connecting to a VPN, check our IP Geolocation Tool to verify your visible IP address has changed. You can also run a DNS Leak Test to ensure your DNS queries are also routing through the VPN.
Last updated: February 2024