What is a VPN?
A virtual private network (VPN) creates an encrypted connection between your device and a VPN server. Your internet traffic travels through that connection before reaching its destination. Websites generally see the VPN server’s public IP address instead of your home IP address.
A VPN can improve privacy in certain situations, but it does not make you anonymous or replace HTTPS, software updates, strong passwords, or good judgment online.
How does a VPN work?
Connect
You launch a VPN app and connect to a server.
Encrypt
Your device encrypts traffic sent to the VPN server.
Browse
The server forwards traffic to websites and services.
The VPN tunnel protects traffic between your device and the VPN server. For end-to-end security when visiting websites, HTTPS is still important. Read our detailed explanation of VPN tunnels and encryption.
What does a VPN protect?
| What a VPN can help with | What it cannot guarantee |
|---|---|
| Encrypt traffic between your device and VPN server | Protection from phishing or malware |
| Hide your home IP from most websites | Complete anonymity online |
| Reduce visibility to local Wi-Fi observers | Prevent tracking when you sign into accounts |
| Change your apparent network location | Access to every geo-restricted service |
Do you need a VPN?
A VPN may be useful when you connect to unfamiliar networks, travel, or want to limit what your internet provider can infer about your traffic. It may be less necessary if your main goal is simply securing everyday HTTPS browsing on a trusted network. Your threat model and the provider’s privacy practices matter more than advertising claims.
For examples, read Do I need a VPN? and VPNs on public Wi-Fi.
How to choose a VPN provider
Compare providers based on independent audits, privacy policy clarity, supported devices, speed and reliability, customer support, total cost including renewal pricing, and cancellation terms. No single service is best for every person.
Considering NordVPN?
NordVPN is one provider to evaluate for encrypted browsing and privacy features. Review its current plan terms, device support, and renewal pricing before buying.
Explore NordVPN plans →Frequently asked questions
Is a VPN legal?
VPN use is legal in many places, but local laws vary. Always check the rules where you live or travel.
Does a VPN make me anonymous?
No. Websites can still identify you through accounts, cookies, device fingerprints, and other signals.
Does a VPN slow down the internet?
It can add latency or reduce throughput because traffic travels through another server. The impact varies.
Is a free VPN good enough?
Some reputable providers offer limited free plans. Compare privacy practices, limits, and business models before choosing.
More answers: VPN FAQ.