PerformanceMark

Baseline Widely available

This feature is well established and works across many devices and browser versions. It’s been available across browsers since September 2017.

See full compatibility

Note: This feature is available in Web Workers.

PerformanceMark is an interface for PerformanceEntry objects with an entryType of "mark".

Entries of this type are typically created by calling performance.mark() to add a named DOMHighResTimeStamp (the mark) to the browser's performance timeline. To create a performance mark that isn't added to the browser's performance timeline, use the constructor.

Constructor

PerformanceMark(): Creates a new PerformanceMark object that isn't added to the browser's performance timeline.

Instance properties

PerformanceMark.detail: Contains arbitrary metadata about the measure.

This interface extends the following PerformanceEntry properties by qualifying/constraining the properties as follows:

PerformanceEntry.entryType Read only: Returns "mark".
PerformanceEntry.name Read only: Returns the name given to the mark when it was created via a call to performance.mark().
PerformanceEntry.startTime Read only: Returns the DOMHighResTimeStamp when performance.mark() was called.
PerformanceEntry.duration Read only: Returns 0. (A mark has no duration.)

Instance methods

This interface has no methods.

Example

See the example in Using the User Timing API.

Chrome DevTools uses performance.mark() and in particular a structured detail property as part of its extensibility API that surfaces these in custom tracks in performance traces. See the example in Performance: mark() method page and the Chrome's extensibility API documentation for more information and examples.

Specifications

Specification
User Timing # performancemark

Browser compatibility

	desktop					mobile							server
	Chrome	Edge	Firefox	Opera	Safari	Chrome Android	Firefox for Android	Opera Android	Safari on iOS	Samsung Internet	WebView Android	WebView on iOS	Bun	Deno	Node.js
`PerformanceMark`	Chrome – Full support Chrome 28 (Release date: 2013-07-09) footnote Full support	Edge – Full support Edge 12 (Release date: 2015-07-29) footnote Full support	Firefox – Full support Firefox 38 (Release date: 2015-05-12) footnote Full support	Opera – Full support Opera 15 (Release date: 2013-07-02) footnote Full support	Safari – Full support Safari 11 (Release date: 2017-09-19) footnote Full support	Chrome Android – Full support Chrome Android 28 (Release date: 2013-07-10) footnote Full support	Firefox for Android – Full support Firefox for Android 38 (Release date: 2015-05-12) footnote Full support	Opera Android – Full support Opera Android 14 (Release date: 2013-05-21) footnote Full support	Safari on iOS – Full support Safari on iOS 11 (Release date: 2017-09-19) footnote Full support	Samsung Internet – Full support Samsung Internet 1.5 (Release date: 2013-09-25) footnote Full support	WebView Android – Full support WebView Android 4.4 (Release date: 2013-12-09) footnote Full support	WebView on iOS – Full support WebView on iOS 11 (Release date: 2017-09-19) footnote Full support	Bun – Full support Bun 1.0.22 (Release date: 2024-01-10) footnote Full support	Deno – Full support Deno 1.2 (Release date: 2020-07-13) footnote Full support	Node.js – Partial support Node.js 16 – 18.20 (Release date: 2021-04-20) footnote Partial support footnote Available as a part of the `perf_hooks` module. Node.js – Full support Node.js 19 (Release date: 2022-10-18) footnote Full support
`PerformanceMark()` constructor	Chrome – Full support Chrome 76 (Release date: 2019-07-30) footnote Full support	Edge – Full support Edge 79 (Release date: 2020-01-15) footnote Full support	Firefox – Full support Firefox 101 (Release date: 2022-05-31) footnote Full support	Opera – Full support Opera 63 (Release date: 2019-08-20) footnote Full support	Safari – Full support Safari 14.1 (Release date: 2021-04-26) footnote Full support	Chrome Android – Full support Chrome Android 76 (Release date: 2019-07-30) footnote Full support	Firefox for Android – Full support Firefox for Android 101 (Release date: 2022-05-31) footnote Full support	Opera Android – Full support Opera Android 54 (Release date: 2019-10-18) footnote Full support	Safari on iOS – Full support Safari on iOS 14.5 (Release date: 2021-04-26) footnote Full support	Samsung Internet – Full support Samsung Internet 12 (Release date: 2020-06-19) footnote Full support	WebView Android – Full support WebView Android 79 (Release date: 2019-12-17) footnote Full support	WebView on iOS – Full support WebView on iOS 14.5 (Release date: 2021-04-26) footnote Full support	Bun – Full support Bun 1.0.22 (Release date: 2024-01-10) footnote Full support	Deno – Full support Deno 1.2 (Release date: 2020-07-13) footnote Full support	Node.js – Full support Node.js 16 (Release date: 2021-04-20) footnote Full support
`detail`	Chrome – Full support Chrome 78 (Release date: 2019-10-22) footnote Full support	Edge – Full support Edge 79 (Release date: 2020-01-15) footnote Full support	Firefox – Full support Firefox 101 (Release date: 2022-05-31) footnote Full support	Opera – Full support Opera 65 (Release date: 2019-11-13) footnote Full support	Safari – Full support Safari 14.1 (Release date: 2021-04-26) footnote Full support	Chrome Android – Full support Chrome Android 78 (Release date: 2019-10-22) footnote Full support	Firefox for Android – Full support Firefox for Android 101 (Release date: 2022-05-31) footnote Full support	Opera Android – Full support Opera Android 56 (Release date: 2020-02-06) footnote Full support	Safari on iOS – Full support Safari on iOS 14.5 (Release date: 2021-04-26) footnote Full support	Samsung Internet – Full support Samsung Internet 12 (Release date: 2020-06-19) footnote Full support	WebView Android – Full support WebView Android 79 (Release date: 2019-12-17) footnote Full support	WebView on iOS – Full support WebView on iOS 14.5 (Release date: 2021-04-26) footnote Full support	Bun – Full support Bun 1.0.22 (Release date: 2024-01-10) footnote Full support	Deno – Full support Deno 1.2 (Release date: 2020-07-13) footnote Full support	Node.js – Full support Node.js 16 (Release date: 2021-04-20) footnote Full support

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Full support: Full support
Partial support: Partial support
: Has more compatibility info.