DSLReports Speed Test
Test your download, upload and latency from a mobile phone up to optical fiber, and everything between. This test is pure HTML5. This test requires your browser's full attention for accurate results. Run the test when your network is quiet, and don't switch to other applications or change browser tabs during the test. A few Windows security and privacy software packages can block the test or slow the browser. Welcome to the speed test that tests internet speed not just speed to your ISP. A complete test takes less than 45 seconds. If you switch tabs during the test, it will stop (blame the browser!). Past tests will show up in this space, so start building your history. We test more than just top speed. This test needs a modern (recent) browser. If it hangs under Windows, please temporarily disable any browser extensions or security software that is likely to be a culprit.
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Network Speed Test
Network Speed Test measures your network delay, download speed and upload speed. Using servers all over the world, Network Speed Test measures your network connection’s latency and throughput. Based on your connection’s speed, Network Speed Test will tell you what activities you might be able to do, such as stream music or video calls. Slide to the right to see a history of your previous tests for easy comparisons. When you test your network using the Network Speed Test, certain characteristics of your device and the network connection will be sent to Microsoft to help improve our understanding of network quality and availability. If you consent, we may also collect information about your location at the time of the test. The data we collect is not associated with you, and will not be used to identify or contact you or for other purposes like targeted marketing.
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SpeedOf.Me
SpeedOf.Me is a free, browser-based internet speed test that measures download, upload, latency and jitter on any device: desktop, mobile, tablet, game console, smart TV or car. No app, no plugin, no download. Launched in 2011 as the first HTML5 speed test, it runs a single stream from your browser to neutral CDN edge servers in 130+ locations, so the result reflects real browsing performance instead of a lab-style peak. We call it Real-World Speed.
Developers can embed the same engine with the SpeedOf.Me API: a few lines of JavaScript, white-label, with callbacks for every metric and an analytics dashboard for usage, geography and devices. Ready-to-run examples cover React, Vue, Angular, Electron, Flutter, iOS, Android and more. An MCP server and CLI (@speedofme/mcp) let AI agents and CI pipelines run real speed tests. The Internet Speed Atlas publishes real-world averages for 119 countries.
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Dotcom-Tools
The website speed test from Dotcom-Tools enables users to test their web pages from for free with up to three worldwide locations, including from behind the Great Firewall of China to ensure your website can be accessed from users within China. Once a test is complete, users can drill into robust performance reports and waterfall chart analysis. Users may also select which browser they'd like to test from. This test supports Chrome, Edge and mobile browsers including Android, iPhone, iPad and more!
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