What Is This Tool?
Speed Test measures your real internet connection speed: download, upload, ping and jitter, using Cloudflare’s public measurement network.
What Can You Do With It?
Check whether your connection matches the speed you pay for. Compare Wi-Fi and mobile data performance. Confirm an unstable connection with measured ping and jitter.
How to Use This Tool
Step 1: Open the Speed Test page. Step 2: Press Start and wait while ping, download and upload are measured one after another. Step 3: Read the finished values in Mbps and milliseconds. Step 4: Press Run again to repeat the measurement at any time.
How Does It Work?
Your browser transfers test data with Cloudflare’s speed test engine and calculates download and upload throughput, plus latency (ping) and its variation (jitter). Every shown value is an actual measurement from your own connection.
Key Benefits
Shows only measured values, never estimates. Uses a worldwide public measurement network. Works on computer and phone browsers.
Limitations and Important Notes
Results depend on your current network load and distance to the measurement server. Wi-Fi, VPNs or a busy connection can lower the measured speed. The test needs an active internet connection.
Privacy and Security
This tool runs entirely in your web browser. Your input and results are processed on your device and are not uploaded to Usekit servers. Test transfers use Cloudflare’s public measurement endpoints, which see normal connection information such as your IP address during the test.
Real-World Example
A finished run may show Download 46.50 Mbps, Upload 79.26 Mbps, Ping 63.2 ms and Jitter 0.50 ms — your own run shows your connection’s real values, with nothing estimated.
Frequently Asked Questions
What are Mbps?
Megabits per second — the unit used for download and upload speed. Higher is faster.
What do ping and jitter mean?
Ping is how long a small message takes to make a round trip; jitter is how much that time varies.
Why do results change between runs?
Networks share capacity with other devices and apps, so each run reflects the connection at that moment.