Home / VPN Services guides / What a VPN Actually Does (and What It Does Not)
What a VPN Actually Does (and What It Does Not)
A VPN hides your traffic from your ISP and your IP from websites. It does not make you anonymous, and it does not stop tracking. Here is the honest list.
September 9, 2026 · 5 min read
A VPN is an encrypted tunnel between your device and a server run by the VPN company. Everything you send goes through that tunnel, so your internet provider sees only encrypted traffic to one address, and the sites you visit see the VPN server's address instead of yours.
What it does
- Hides your browsing from your ISP, your employer's network or a hotel Wi-Fi operator.
- Gives you an IP address in another country, which is how streaming libraries change.
- Protects you on public Wi-Fi from anyone on the same network.
What it does not do
- It does not make you anonymous. The VPN company can see what your ISP used to see — which is why jurisdiction and audited no-logs policies are 30% of our score.
- It does not block cookies, fingerprinting or account-based tracking. Logging into Google over a VPN is still logging into Google.
- It does not protect against malware or phishing, although NordVPN, Surfshark and Proton bundle blockers.
Choosing
Match the VPN to the job: Mullvad or Proton for privacy, NordVPN or ExpressVPN for streaming, Surfshark or PIA for many devices on a budget.
» See the full rankings: Best VPN Services of 2026, Best VPN for Privacy in 2026 .