Does a VPN Affect Speed Tests?

VPNs add encryption and routing overhead. That can reduce speed and increase latency, especially on slower plans.

Why VPNs change results

  • Traffic travels farther to the VPN server.
  • Encryption adds processing overhead.

How to test

  • Run tests with VPN off and on.
  • Choose a nearby VPN server for best results.

When VPN tests matter

  • If you always use a VPN, test with it enabled.
  • For ISP troubleshooting, test without VPN first.
Run a Speed Test

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Quick Answers

What is the most common mistake?

Relying on a single test result or ignoring Wi‑Fi conditions is the most common mistake.