About Internet Speed Test

A browser-based connection measurement service operated by Mion.

Mion operates Internet Speed Test in the Republic of Korea. The service is a browser-based tool for checking download speed, upload speed, and latency between your device and a measurement server.

A result reflects the browser, device, local connection, and network route available during that test. It is useful for observing current conditions, but it does not by itself confirm a plan's promised speed, diagnose an outage, or guarantee performance for every online service.

The service has no account system and does not save measurement history. Results are shown only in the current browser session.