What is Connection?
This tool shows whether your browser currently has an internet connection, and—where the browser supports it—your connection type, an estimated download speed, round-trip latency and whether data-saver mode is on. The online/offline status updates instantly if your connection drops or returns.
How Connection works
The online status comes from navigator.onLine and the online/offline events. Connection details come from the Network Information API (navigator.connection), which reports an effective type like 4G, an estimated downlink in Mbps and the rtt latency.
These figures are the browser's own estimates, not a full speed test.
Common uses
- Confirm whether you are connected to the internet
- See your rough connection type and speed
- Check latency (RTT) for gaming or calls
- Detect when your connection drops or returns
Frequently asked questions
How do I know if I'm online?
The big status at the top shows Online or Offline and changes automatically if your connection changes.
Is the speed a real speed test?
No. It's the browser's estimate from the Network Information API. For an exact figure, run a dedicated speed test.
Why does it say 'not available'?
Connection type, speed and latency are only exposed by some browsers (mainly Chrome, Edge and Android). Online status works everywhere.