Internet Speed Test

モバイルおよびWIFIインターネット接続の速度テスト

SpeedTest is fully-featured mobile connectivity and network signal speed test tool. Speed test, including download, upload, and latency – for 3G & 4G/LTE and WiFi Find the best network provider in your area. Completely free. Our mission is to create an open-source map of connectivity so that everyone in the world can enjoy the best mobile connection available.

Speed test for mobile and WiFi internet connections

Speed Test is an ad-free internet speed test tool that can be used to check the speed of your mobile connection (on 3G, 4G, LTE, or 5G network connection), as well as for WiFi speed testing.

Test internet speed and app performance

Speed Test's unique speed test allows you to see how your internet connection and download speed will affect the performance of your favorite mobile apps. You can test app performance for up to six mobile apps at a time, from 27 of the most popular apps and games around the world.

Easy to use speed test

One simple speed test gives you easy-to-understand results for download speed, upload speed, and ping time. Then, simply choose the apps you use most to see how they are impacted by your current network connection - no more trying to work out whether your network service provider is delivering the 4G connection you need.

Historic internet speed test performance

View all of your internet speed tests by location on a map and sort them by best and worst performance. See a timeline of your tests in the test history tab and review the stats for each speed test to monitor how your network experience has changed over time.

Improving network connection

We provide an independent source of truth in mobile network experience: A data source that shows how users experience mobile network speeds, gaming, video, and voice services worldwide. To do this, we collect anonymized data on the signal strength, network, location, and other device sensors. You can stop this at any time in the settings. We share this data with network operators globally and others in the industry to drive better connectivity for all.