Test your internet speed on any device with Speedtest by Ookla, available for free on desktop and mobile apps.

To run a Speedtest, make sure you are connected to a network (mobile or broadband), hit the “GO” button, and you’ll see your download and upload speeds, along with latency (ping) and jitter.

Learn why the internet speeds you experience may differ from what your ISP delivers. Understand how your networking equipment and placement can affect your connection, and discover how to optimize …

It's never been faster or easier to take a Speedtest. Download the free Speedtest desktop app for Windows to check your internet speeds at the touch of a button.

But are you getting the speeds you deserve? Find out with free native apps that measure the speed of your broadband, cellular or Wi-Fi connection on each device.

Find out which countries have the fastest internet speeds in the world. View global monthly comparisons of fixed and mobile internet speeds.

From the initial test screen, click or tap on the “GO” button and wait a few seconds until your download and upload speeds have been analyzed. To better understand the methodology behind Speedtest, …

Speedtest Global Index Ranking mobile and fixed broadband speeds from around the world on a monthly basis.

A quick guide to what speeds you need for different online activities is below, and you can read our full guide to internet speeds and performance for more information.

Speedtest Global Index Ranking mobile and fixed broadband speeds from around the world on a monthly basis.