A free trial is only valuable if you use it deliberately. The 5 tests below are designed to surface real-world limitations — the things you won't discover until you're two months into a paid subscription and frustrated.
Connection Speed Under Real Conditions
Speed is the most obvious metric, but most people test it wrong. Don't just run one speed test when you first connect. Test at different times: morning, evening, and during peak hours (typically 7–10 PM in your timezone). VPN speeds vary significantly based on network load.
Also test speed on different server locations — both nearby and geographically distant ones. This tells you how well the provider manages server capacity.
Kill Switch Functionality
The kill switch is one of the most important privacy features in a VPN. It cuts your internet connection if the VPN drops — preventing your real IP address from being exposed during a reconnection gap. Many VPNs advertise a kill switch but don't implement it reliably.
Testing it requires deliberately breaking your VPN connection and seeing whether your traffic is blocked. This is uncomfortable to test, which is why most people don't — and why it matters so much that you do.
DNS Leak Protection
Even when your IP address is hidden, DNS queries can reveal your identity if they bypass the VPN tunnel. This is called a DNS leak. It's surprisingly common even with reputable VPN providers, and it can completely undermine your privacy goals.
App Performance Across All Your Devices
Most people primarily use their phone, not their laptop, for browsing. If you plan to use a VPN on mobile, test the mobile app — not just the desktop client. App quality varies significantly between platforms, even from the same provider.
Pay attention to: how long it takes to connect, whether it reconnects automatically after your phone sleeps or switches from WiFi to cellular, and whether the battery drain is acceptable.
Customer Support Responsiveness
You'll likely never need support — until you do, and then it matters enormously. Send a genuine technical question during your trial: ask about a specific server issue, an app behavior, or a protocol question. The quality and speed of the response tells you a lot about what you can expect long-term.
Your 7-Day Trial Checklist
- Day 1: Run speed tests on 3 nearby server locations
- Day 2: Test kill switch by disconnecting WiFi while connected
- Day 3: Run DNS leak test at dnsleaktest.com
- Day 4: Install and test the app on your phone
- Day 5: Run peak-hour speed tests (evenings)
- Day 6: Contact support with a real question
- Day 7: Review your notes — upgrade, switch, or skip