Internet Speed Test
Measure your download speed, upload estimate, latency (ping) and jitter right in the browser — no app or plugin needed. Free.
The test runs in your browser against a public test server. Results are estimates and depend on your network, server load and device.
Download speed and latency are measured in your browser and are estimates. For a binding measurement use your ISP's official tool.
About Internet Speed Test
The Internet Speed Test measures your connection from inside the browser — no app, plugin or account. Press Start and it first measures latency: a series of small requests to this site’s server yields your ping (the median round-trip time) and jitter (how much that time fluctuates between requests).
It then measures download throughput by repeatedly fetching a test file from the server for several seconds, counting the bytes received and updating the megabits-per-second figure live as it runs. When the run completes you get three numbers side by side: ping in milliseconds, jitter in milliseconds and download speed in Mbps, with a Test again button for repeat runs.
Results are estimates. They depend on your Wi-Fi or cable link, everything else using your network at that moment, your device’s speed and the load on the test server — so treat the numbers as a practical health check rather than a contractual measurement, and use your ISP’s official tool when a binding figure matters.
How to use Internet Speed Test
- Close bandwidth-heavy apps and downloads so they don’t skew the measurement.
- Press Start test and keep the tab in the foreground while it runs.
- Watch the phases: latency is measured first, then download throughput with a live Mbps readout.
- Read your ping, jitter and download results on the summary cards.
- Press Test again to repeat — running the test a few times gives a more reliable picture.