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.


PerformanceLongTaskTiming.attribution Read only
Returns a sequence of TaskAttributionTiming instances.


Specification Status Comment
Long Tasks API 1
The definition of 'PerformanceLongTaskTiming' in that specification.
Working Draft Initial definition.

Browser Compatibility

FeatureChromeEdgeFirefoxInternet ExplorerOperaSafari
Basic support58 ? ? ? ? ?
attribution58 ? ? ? ? ?
FeatureAndroid webviewChrome for AndroidEdge mobileFirefox for AndroidOpera AndroidiOS SafariSamsung Internet
Basic support5858 ? ? ? ? ?
attribution5858 ? ? ? ? ?

Document Tags and Contributors

Contributors to this page: ExE-Boss, jpmedley
Last updated by: ExE-Boss,