VPN Speed Test
Measure your connection speed to see how your VPN affects performance. Test download speed, latency, and jitter. Run with VPN on and off to compare the difference.
How Does the VPN Speed Test Work?
This speed test measures three key metrics of your internet connection. Download speed is measured by fetching a known file from a CDN multiple times and calculating the transfer rate. Latency is measured by timing round-trip requests to DNS resolvers. Jitter is calculated from the variation between latency measurements. These are the same metrics that affect your VPN experience.
What Each Metric Means
- Download Speed (Mbps) — How fast data travels to your device. Higher is better. VPNs typically reduce speed by 10-30% due to encryption overhead and routing.
- Latency (ms) — The time for a round-trip request. Lower is better. VPNs add latency because traffic routes through the VPN server. Under 50ms is excellent, 50-100ms is good, over 100ms may feel slow.
- Jitter (ms) — Variation in latency between requests. Lower is better. High jitter causes stuttering in video calls and gaming. Under 10ms is excellent, 10-30ms is acceptable.
Why Is My VPN Slow?
VPN speed depends on several factors: the distance to the VPN server (closer servers are faster), the VPN protocol used (WireGuard is fastest, OpenVPN is slower), server load (popular servers get congested), your base internet speed, and your VPN provider's infrastructure quality.
Tips to Improve VPN Speed
- Connect to the nearest VPN server to your physical location
- Use WireGuard protocol if your VPN supports it — it is significantly faster than OpenVPN
- Try different servers — some may be less congested than others
- Use a wired connection instead of WiFi for more consistent speeds
- Close background apps that consume bandwidth
- Upgrade your VPN plan if your provider offers faster tiers
What VPN Speed Do You Actually Need?
A slower number on a VPN is only a problem if it drops below what you are doing with the connection, so compare your result against the task rather than against your headline broadband tier. Streaming HD video needs about 5 Mbps, 4K video needs roughly 25 Mbps, and a 1080p video call needs about 4 Mbps in each direction; the US Federal Communications Commission raised its national fixed broadband benchmark to 100 Mbps down / 20 Mbps up in March 2024, which is a fair target for a whole household rather than a single device. Competitive gaming is latency-bound, not bandwidth-bound — it needs only 3–6 Mbps but wants latency under 50 ms and jitter under 10 ms, both of which this test reports. If your VPN result still clears the figure for what you actually do, the speed loss is cosmetic. Updated 2026-09-05.
VPN Protocols Ranked by Speed: WireGuard vs OpenVPN vs IKEv2
Protocol choice usually moves VPN speed more than switching provider does. WireGuard is the fastest of the three in common use: about 4,000 lines of code, a single modern cipher suite, and it runs in the kernel, so throughput loss versus an unencrypted connection is typically in the 5–15% range. IKEv2/IPsec sits close behind and reconnects fastest when you move between WiFi and mobile data, which makes it the practical pick on a phone. OpenVPN is the slowest, commonly 20–40% down, because it runs in userspace and OpenVPN over TCP adds a second layer of retransmission on top of your own — if you must use OpenVPN, choose UDP. Test each protocol with the tool above and save the results side by side before deciding. On configuration and threat model, see the UK National Cyber Security Centre’s VPN guidance. Updated 2026-09-05.
Frequently Asked Questions
How does this VPN speed test work?
It downloads a known file from a CDN three times to measure average download speed in Mbps, then measures round-trip latency to DNS resolvers to calculate latency and jitter. All measurements happen in your browser.
How do I compare VPN vs non-VPN speed?
Run the test with your VPN connected and save the result as "VPN On". Then disconnect your VPN and run again, saving as "VPN Off". Both results appear in the history table for easy comparison.
Why is my VPN speed slow?
VPN speed depends on server distance, protocol (WireGuard is fastest), server load, and your base internet speed. VPNs add encryption overhead which typically reduces speed by 10-30%.
What is jitter and why does it matter?
Jitter is the variation in latency between consecutive requests. High jitter means your connection is unstable, causing buffering in video streaming and lag in gaming. Under 10ms is excellent.
Is this speed test accurate?
This test provides a good relative measurement for comparing VPN vs non-VPN speeds. For absolute speed measurement of very fast connections (100+ Mbps), dedicated speed test services that use larger files may be more precise.
How much VPN speed do I need for streaming and gaming?
Compare your result to the task, not to your broadband tier. HD streaming needs about 5 Mbps, 4K needs about 25 Mbps, and a 1080p video call needs about 4 Mbps each way. The FCC raised its national fixed broadband benchmark to 100 Mbps down and 20 Mbps up in March 2024, which is a household target rather than a per-device one. Competitive gaming needs only 3 to 6 Mbps but wants latency under 50 ms and jitter under 10 ms, both of which this test reports.
Which VPN protocol is fastest — WireGuard, IKEv2 or OpenVPN?
WireGuard is fastest, typically losing only 5 to 15 percent of throughput because it is small, kernel-resident and uses a single modern cipher suite. IKEv2/IPsec is close behind and reconnects fastest when a phone switches between WiFi and mobile data. OpenVPN is slowest, commonly 20 to 40 percent down, because it runs in userspace — and OpenVPN over TCP is slower still, so pick UDP if OpenVPN is your only option. Run this test once per protocol and save each result to compare them directly.
How often should I test my VPN speed?
Test whenever you switch VPN servers, change VPN protocols, or notice slow performance. Periodic testing helps you identify the fastest server locations for your needs.