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PerformanceMark is an abstract interface for performance entries with an entry type of "mark". Entries of this type are created by calling performance.mark() to add a named DOMHighResTimeStamp (the mark) to the browser's performance timeline.

The PerformanceMark interface has no properties, no methods nor any constructors. However, it qualifies and constrains the following PerformanceEntry properties for "mark" type performance entries: name, entryType, startTime and duration.


This interface has no properties but it extends the following PerformanceEntry properties by qualifying/constrainting the properties as follows:

Set to "mark".
Set to the the name given to the mark when it was created via a call to performance.mark().
Set to the DOMHighResTimeStamp when performance.mark() was called.
Set to "0" (a mark has no duration).


This interface has no methods.


See the example in Using the User Timing API.


Specification Status Comment
User Timing
The definition of 'PerformanceMark' in that specification.
Editor's Draft  
User Timing
The definition of 'PerformanceMark' in that specification.
Recommendation Basic definition.

Browser compatibility

Feature Chrome Firefox (Gecko) Internet Explorer Opera Safari (WebKit)
Basic support. 43 41 10 33 Not supported
Feature Android Firefox Mobile (Gecko) Firefox OS IE Phone Opera Mobile Safari Mobile
Basic support. 46 42 42 10 33 Not supported

See also

Document Tags and Contributors

 Contributors to this page: stephaniehobson, AFBarstow
 Last updated by: stephaniehobson,