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This is an experimental technology
Check the Browser compatibility table carefully before using this in production.
The PerformanceLongTaskTiming interface of the the Long Tasks API reports instances of long tasks.
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a:hover text { fill: #0095DD; pointer-events: all;}
Properties
PerformanceLongTaskTiming.attributionRead only- Returns a sequence of
TaskAttributionTiminginstances.
Specifications
| Specification | Status | Comment |
|---|---|---|
| Long Tasks API 1 The definition of 'PerformanceLongTaskTiming' in that specification. |
Working Draft | Initial definition. |
Browser Compatibility
The compatibility table on this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.
Update compatibility data on GitHub
| Desktop | Mobile | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
PerformanceLongTaskTiming | Chrome Full support 58 | Edge ? | Firefox ? | IE ? | Opera ? | Safari ? | WebView Android Full support 58 | Chrome Android Full support 58 | Edge Mobile ? | Firefox Android ? | Opera Android ? | Safari iOS ? | Samsung Internet Android ? |
attribution | Chrome Full support 58 | Edge ? | Firefox ? | IE ? | Opera ? | Safari ? | WebView Android Full support 58 | Chrome Android Full support 58 | Edge Mobile ? | Firefox Android ? | Opera Android ? | Safari iOS ? | Samsung Internet Android ? |
Legend
- Full support
- Full support
- Compatibility unknown
- Compatibility unknown
- Experimental. Expect behavior to change in the future.
- Experimental. Expect behavior to change in the future.