How fast is your download speed? In seconds, FAST.com's simple Internet speed test will estimate your ISP speed.

Fast.com estimates your current internet download speed. You will generally be able to get this speed from leading internet services, which use globally distributed servers.

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Check your internet speed with our simple and fast speed test. Get detailed results for your download speed, upload speed, and personalized insights into your connection performance.

Test your Internet connection. Check your network performance with our Internet speed test. Powered by Cloudflare's global edge network.

Test your current internet speed, and find out how fast your broadband wi-fi handles uploads and downloads. See Google Fiber plan options for faster internet.

Download speed is how fast your internet connection can pull data from the internet to your device. It’s measured in megabits per second (Mbps) or gigabits per second (Gbps) and determines how quickly …

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An embedded experience specifically designed to be fast, clear and easy to use, Speedtest is available for Mac and Windows.

Test your connection fast with Xfinity’s internet speed test tool and get tips on how to improve your internet performance.