FAQs

Speedtest measures the speed between your device and a test server, using your device's internet connection. Several factors can impact the speed recorded by a test:

Devices (phones, tablets, PCs, etc…) can have very different Wi-Fi and cellular radio capabilities. This means you might get one Speedtest result on one device and a different result on another, even using the same provider. Some devices may not be able to measure the full speed of your internet service. It’s also possible that your Wi-Fi router doesn’t support the full speed of your service.

Speedtest servers may perform differently. Generally, you will get faster speeds from servers closer to you. We recommend testing to a variety of test servers to get the most complete picture of your speed. Speedtest has the world’s largest testing server network, which means you will always have the benefit of testing to a server near your geographic location.

Other speed testing services use different servers in different locations than Speedtest, so differences in speeds between testing services are not uncommon.

Browsers (Chrome, Firefox, Edge, Safari, etc…) have different capabilities and may provide different results, particularly on high-speed connection

Jitter is the variation in the time between data packets arriving, caused by network congestion, or route changes. The longer data packets take to transmit, the more jitter affects audio quality. The standard jitter measurement is in milliseconds (ms).