This is an experimental technology
Check the Browser compatibility table carefully before using this in production.
The NetworkInformation.rtt read-only property returns the estimated effective round-trip time of the current connection, rounded to the nearest multiple of 25 milliseconds. This value is based on recently observed application-layer RTT measurements across recently active connections. It excludes connections made to a private address space. If no recent measurement data is available, the value is based on the properties of the underlying connection technology.
rtt = NetworkInformation.rtt
A number.
| Specification | Status | Comment |
|---|---|---|
| Network Information API The definition of 'rtt' in that specification. | Editor's Draft | Initial definition |
| Feature | Chrome | Firefox (Gecko) | Internet Explorer | Opera | Safari |
|---|---|---|---|---|---|
| Basic support | 61 | No support | No support | 48 | No support |
| Available in workers | 61 | No support | No support | 48 | No support |
| Feature | Android Webview | Chrome for Android | Firefox Mobile (Gecko) | IE Mobile | Opera Mobile | Safari Mobile |
|---|---|---|---|---|---|---|
| Basic support | 50 | 38 | 31.0 (31) | No support | 37 | No support |
| Available in workers | 50 | 38 | 53.0 (53) | No support | 37 | No support |
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https://developer.mozilla.org/en-US/docs/Web/API/NetworkInformation/rtt