The duration read-only property returns a double that contains the server-specified metric duration, or value 0.0.
serverTiming.duration;
| Specification | Status | Comment |
|---|---|---|
| Server Timing The definition of 'duration' in that specification. | Working Draft | Initial definition. |
| Desktop | ||||||
|---|---|---|---|---|---|---|
| Chrome | Edge | Firefox | Internet Explorer | Opera | Safari | |
| Basic support | 65 | ? | 61 | No | 52 | ? |
| Mobile | |||||||
|---|---|---|---|---|---|---|---|
| Android webview | Chrome for Android | Edge Mobile | Firefox for Android | Opera for Android | iOS Safari | Samsung Internet | |
| Basic support | 65 | 65 | ? | 61 | 52 | ? | ? |
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https://developer.mozilla.org/en-US/docs/Web/API/PerformanceServerTiming/duration