Tools
Test your internet speed
Measure your download, upload, latency, and jitter in seconds — right in your browser.
—Mbps
Download
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Download · Mbps
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Upload · Mbps
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Latency · ms
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Jitter · ms
Runs in your browser using the Cloudflare speed-test network.
What the numbers mean
Download and upload (Mbps) tell you how much data you can move in and out per second. Latency (ms) is the delay before data starts flowing, and jitter is how steady that delay is — both matter most for calls, gaming, and video.
Why test with and without a VPN
Running the test on your normal connection, then again on Zic VPN, shows the real overhead of encryption — and can reveal when your ISP is throttling certain traffic, which a VPN can help bypass.
FAQ
- What do download and upload speeds mean?
- Download is how fast you pull data in (streaming, browsing, loading pages); upload is how fast you send data out (video calls, posting, backups). Both are measured in megabits per second (Mbps).
- What are latency and jitter?
- Latency (ping) is the round-trip delay to the server in milliseconds — lower is better for gaming and calls. Jitter is how much that delay varies; high jitter causes stutter and lag.
- Does a VPN slow down my speed?
- A little, because traffic is encrypted and routed through a server. A fast protocol like WireGuard keeps the overhead small. Test with the VPN off, then on, to compare.
Fast and private
Zic VPN runs on WireGuard for speed and V2Ray for blocked networks — test the difference.
Download Zic VPN