FAST.com
FAST.com speed test gives you an estimate of your current Internet speed. You will generally be able to get this speed from leading Internet services, which use globally distributed servers. Download speed is most relevant for people who are consuming content on the Internet, and we want FAST.com to be a very simple and fast speed test. When you click the “Show more info” button, you can see your upload speed and connection latency (ping). FAST.com provides two different latency measurements for your Internet connection. “unloaded” and “loaded” with traffic. The difference between these two measurements is also called “bufferbloat”. To calculate your Internet speed, FAST.com performs a series of downloads from and uploads to Netflix servers and calculates the maximum speed your Internet connection can provide. FAST.com will test Internet speed globally on any device (phone, laptop, or smart TV with browser).
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Speed Test
Download speed measured in megabits per second (Mbps), how fast your computer can receive data from a server on the Internet. Upload speed, how fast your computer can send data to a server on the Internet. Ping, also known as “latency”, measures the reaction time of your Internet connection by calculating the time it takes between sending out a request to getting a response. Measured in milliseconds (ms), ping indicates how responsive your Internet connection is. Jitter, based on multiple measures of pings, jitter measures the consistency of your Internet connection. Also measured in milliseconds, the smaller the jitter, the more stable an Internet connection. Speed Test works with a global network of over 5,000 testing servers. The app selects a server nearby your current location with a fast ping, which usually indicates a reliable Internet connection with good throughput.
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Speakeasy Speed Test
The Speakeasy Internet Speed Test is an HTML5, non-Flash bandwidth test, which checks your connection’s download and upload speeds using your browser. Our bandwidth test uses HTML5 technology and does not require any downloads to run. Bandwidth speed tests are typically used to check speed. However, our Speed Test Plus also checks the line quality of the connection coming from your broadband provider. A bandwidth speed test is an effective way for individuals and businesses to measure their connection. Broadband providers sell tiered packages based on speed, so it’s important to test regularly to make sure you are getting the appropriate return on investment. For organizations that use VoIP services, reliable broadband speed is a core necessity for the daily work of every employee. From conference calls to exporting large amounts of data, the speed of your broadband connection has a huge impact on your bottom line.
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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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