Internet Speed Test
Download, upload, ping and jitter.
Ready when you are
- Download
- — Mbps
- Upload
- — Mbps
- Ping
- — ms
- Jitter
- — ms
Uses about 25–100 MB on fast connections; less on slow ones.
Keep this tab open for an accurate result.
Nothing is stored — the test only exchanges throwaway data with our server.
How to use it
- Pause streaming, downloads and updates so they don't affect the result, and keep this tab open during the test.
- Press Start. You can cancel at any time.
- The test measures ping and jitter first, then download and upload speed. It takes about 20–30 seconds.
- Check your results. For a clearer picture, run the test a few times at different times of day.
Frequently asked questions
What does this test measure?
It measures the connection between your device and the nearest Cloudflare server. That is a good guide to the speed your internet provider gives you, but your speed to other servers, games or websites may be different.
What are ping and jitter?
Ping is the time it takes for data to reach the server and come back, in milliseconds. Jitter shows how much the ping varies from one moment to the next. Low ping and low jitter matter most for online games and video calls.
Why is my result lower than my plan's speed?
Weak Wi-Fi, an old router, other devices using the connection and busy evening hours all reduce speed. For the most accurate result, connect your device to the router with a cable and test again.
Does the test use my mobile data?
Yes. Depending on your speed, one test uses up to about 25–100 MB on fast connections, and less on slow ones. If your data plan is limited, test over Wi-Fi.
What speed do I need?
As a rough guide, HD video needs about 5 Mbps, 4K video 25 Mbps or more, and video calls 3–5 Mbps. If several people use the connection at once, you need more.