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

Use Speedtest on all your devices with our free desktop and mobile apps.

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

Test your internet speed in seconds with FastSpeedTest.com. Measure your download and upload speeds, ping, and jitter accurately on broadband, WiFi, or mobile networks.

Test your internet speed instantly. Check download, upload, and ping with our fast, free online speed test tool. No install or signup needed.

How fast is your internet speed? Take our test to connect to dozens of public popular resources to see your results.

Use the FAST.com app to help you see how fast your Internet connection is, whether on mobile or broadband, anywhere in the world. It has a streamlined design that is quick and easy to understand.

How Fast Is the World’s Fastest Human? Significantly slower than a speeding bullet, it turns out.

How fast is your internet? It's important to understand that different internet speeds are necessary for different usage scenarios. Both download and upload speeds determine what's possible. So when …