What Is a VPN?
A VPN (Virtual Private Network) is a technology that creates a secure, encrypted tunnel between your device and a remote server operated by the VPN provider. All your internet traffic routes through this tunnel, so websites and services see the VPN server's IP address - Not yours.
How a VPN Works - Step by Step
| Step | What Happens |
|---|---|
| 1 | You connect to a VPN server (in any country) using the VPN app |
| 2 | Your device and the VPN server negotiate an encrypted tunnel |
| 3 | All your traffic (browser, apps, DNS) routes through this tunnel |
| 4 | The VPN server makes requests to the internet on your behalf |
| 5 | Websites see only the VPN server's IP - Your real IP stays hidden |
VPN Protocol Comparison
| Protocol | Speed | Security | Best for |
|---|---|---|---|
| WireGuard | Fastest | Excellent | Modern devices, everyday use |
| OpenVPN | Good | Excellent | Maximum compatibility |
| IKEv2/IPSec | Fast | Very good | Mobile (handles reconnects well) |
| L2TP/IPSec | Slow | Good | Legacy systems |
What a VPN Protects - And What It Doesn't
| VPN Protects Against | VPN Does NOT Protect Against |
|---|---|
| ISP seeing your browsing | Malware on your device |
| Websites seeing your real IP | Cookies and browser fingerprinting |
| Network snooping on public Wi-Fi | Phishing and social engineering |
| Geo-restrictions and censorship | Account hacking (requires strong passwords) |
A VPN Shifts Trust - It Does Not Remove It
The most important thing to understand about a VPN is that it does not make your traffic invisible; it moves the point of visibility. Without a VPN, your ISP can see every domain you connect to. With a VPN, your ISP sees only an encrypted stream to one server - But the VPN provider now occupies the position your ISP used to hold. That is why the provider's logging policy, audit history, and legal jurisdiction matter more than any speed claim or server count. A VPN that logs your activity has simply replaced one observer with another.
HTTPS already encrypts the contents of your traffic to most websites. What a VPN adds on top is hiding which sites you visit from your local network and ISP, and hiding your real IP address from the sites themselves.
Do You Actually Need a VPN?
A VPN is genuinely useful in some situations and close to pointless in others. A simple decision framework:
- Choose a VPN if you regularly work on public Wi-Fi in cafés, airports, or hotels - Encryption protects you from anyone snooping on the local network.
- Choose a VPN if you do not want your ISP building a profile of your browsing, or your ISP is known to sell traffic data.
- Choose a VPN if you need to reach services that are blocked or region-restricted where you live or travel.
- Choose a VPN if you torrent - Your IP address is otherwise visible to every peer in the swarm.
- You may not need one if you only browse from a trusted home connection, use HTTPS everywhere, and have no geo-restriction needs - The privacy gain is then modest.
- A VPN is the wrong tool if your goal is strong anonymity against a determined adversary - Look at Tor instead, or combine the two. See Tor vs VPN.
Setting Up Your First VPN - And Proving It Works
Installing a VPN app takes minutes; the step most people skip is verifying that the tunnel actually protects them. The full process:
- Pick a provider with an independently audited no-logs policy - Our choosing a VPN guide walks through the criteria.
- Download the official app from the provider's website or your platform's app store - Never from third-party download sites.
- Before connecting, open the app's settings and enable the kill switch, so a dropped tunnel cannot expose your real IP. See what a kill switch does.
- Connect to a server - The nearest one for speed, or a server in a specific country for geo-access.
- Run our VPN Leak Test. Your detected IP should belong to the VPN provider, and no DNS or WebRTC leak should show your real address.
- Repeat the leak test whenever you update the VPN app, change protocol, or connect from a new network.
Frequently Asked Questions
Does a VPN hide everything I do online?
No. A VPN hides your IP address from the sites you visit and the contents of your traffic from your ISP, but the VPN provider itself can see connection metadata, and websites can still recognise you through cookies, logins, and browser fingerprinting. Treat a VPN as one layer of privacy, not total anonymity.
Is it legal to use a VPN?
In most countries, yes. A handful of countries, including China, Russia, and the UAE, restrict or ban unapproved VPN use, so check local law before travelling. Anything that is illegal without a VPN remains illegal with one.
Will a VPN slow down my connection?
Some overhead is unavoidable because your traffic takes a longer, encrypted route. With a modern protocol such as WireGuard and a server near you, most people notice little difference for everyday browsing and streaming.
How can I check that my VPN is actually working?
Connect to the VPN, then run a leak test that compares your visible IP address, DNS servers, and WebRTC candidates against your real connection. If your ISP's IP address or DNS resolvers still appear, the tunnel is leaking. Our free VPN leak test at whatsmyip.now/tools/vpn-leak-check runs these checks in your browser.
How We Evaluate VPNs
Every recommendation in our VPN guides is weighed against the same five criteria:
- No-logs policy and audits - We prioritise providers whose no-logs claims have been verified by independent auditing firms, and we note real-world events (subpoenas, server seizures) that tested those claims.
- Leak-test results - A VPN must not expose your real IP, DNS servers, or WebRTC addresses. You can run the same checks we use with our free VPN Leak Test.
- Speed impact - We favour providers supporting modern protocols (WireGuard, or equivalents like NordLynx and Lightway) that keep overhead low.
- Jurisdiction - Where a provider is incorporated determines which governments can compel it to hand over data.
- Price transparency - Clear renewal pricing and honest refund terms. We avoid quoting specific prices in guides because promotions change frequently - Always check current pricing on the provider's site.
Our assessments are based on published third-party audits, vendor documentation, and our own leak-testing tooling - We do not have insider access to any provider's infrastructure. These pages are reviewed periodically and updated when audits, ownership, or features change.
Once you have picked a provider, two practical checks matter more than any review: if your connection fails, see how to fix a VPN that won't connect; and to confirm you are actually protected, learn how to test if your VPN is working.
ⓘ Affiliate disclosure: Some links to VPN providers in these guides are affiliate links - We may earn a commission at no extra cost to you. This never affects rankings or evaluations.
Last updated: June 2026