Your entire test history is kept for your use even if you are not a registered member.

Wide range of operating conditions: tuned to work accurately over proxy driven satellite links, over laggy phone links - yet in the same 30s to 60s run time it will also measure gigabit capable connections.

The test works consistently as possible across all modern browsers: Kindles, Playstation4, SmartTVs, Linux, iPhones, Android, FreeBSD and more run the test daily.

All your results, from any device, are together.

This test does not require highly insecure and annoying (update? again!?) Flash plug-ins or Java installs, nor does it require installation of an app.

Of course if you want single stream testing you can set that option in the handy preferences panel.

It also represents the modern usage pattern: someone is streaming netflix, a console is downloading a game patch, a VOIP or Skype call is taking place. Multi-stream testing overcomes the need for the speed test server to be physically very close to your location. This is the worlds first multi-stream HTML5 speed test.The traffic must have made an impression on them because a few years later the CEO quit to start. One of the first ISPs to donate bandwidth was a company called Speakeasy. Last time we checked it had logged over 150 million tests. It was a Java applet and did a simple staged download and upload.

15 years ago we launched the very first popular broadband speed test. The closer to the server the higher speeds can be obtained by the client operating system. Generally the ultimate speed limit is not the server speed but the distance to the server. They are currently capable of running from 300 megabit for the smaller servers to over 2 gigabit for the faster servers. The servers are dedicated to speed testing and monitored for performance. This can be limited by several factors including the distance to the test servers, the operating system in use, the traffic en-route, and of course any congestion or wiring problems close to your location. The speed test attempts to take your network connection to its maximum speed.

Speeds are quoted in megabits per second (1 million bits per second) or kilobits per second (1000 bits per second) of data. The test should take no longer than one minute to complete. It does a multiple stream download and upload to servers it determines may be closest to your location. A speed test checks the maximum speed of your connection to a remote server on the internet.

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