About SpeedOf.Me
The real-world speed test, since 2011: one download stream, in your browser, against neutral servers on the open internet. The speed of actually using the internet. What is Real-World Speed? →
No More Flash!
Early in 2010, Apple announced it would not support Flash in its products. Shortly after, Microsoft signaled the end of Silverlight (a Flash-like plugin) and stated that Internet Explorer 10 would no longer support any browser plugins, including Flash. The industry was clearly moving toward HTML5. New tools like Adobe Edge were introduced to support the shift, yet no broadband speed tests had embraced HTML5. Most still relied on Flash or Java plugins.
SpeedOf.Me Was Born
In December 2011, we launched the first HTML5-based broadband speed test. SpeedOf.Me is a pure HTML5 and JavaScript solution that relies entirely on browser-native technologies. It runs seamlessly on any device with a modern browser: phones, tablets, laptops, TVs, and more. No plugins, no downloads. Just a simple, accurate speed test in your browser.
Why SpeedOf.Me?
- Measures real-world speed for browsing, uploads, downloads, and streaming
- Runs in any browser: phones, tablets, laptops, smart TVs, consoles, even in-car systems
- No apps or plugins needed
- Single-stream testing for accurate, repeatable results
- Real-time bandwidth graph shows your connection as it's measured
Cited and Recommended By
None of these are partnerships. Each is an organization's own editorial, support or research choice, and every one is linked to its source on the press and citations page.
- The help pages of Disney+, Hulu and Nintendo tell customers to test their connection at speedof.me
- CNET named it the best internet speed test for consistency (2025); TechRadar and Tom's Guide use it in their VPN testing methodology, and ISPreview covered our country rankings as news
- The California Public Utilities Commission accepts its results as evidence in its broadband grant program
- Its method is documented in peer-reviewed research at USENIX NSDI, ACM IMC and PAM, and it is one of ten platforms supported by CAIDA's NSF-funded RABBITS measurement toolkit
- It appears in textbooks and study guides from Pearson, Cengage, Wiley and O'Reilly
Integrate SpeedOf.Me into Your Platform
Add speed testing to your website, connect AI agents via MCP, or automate with our CLI. The SpeedOf.Me API delivers accurate bandwidth data without hosting files or managing infrastructure.