Performance
Widely available since 2018-03-16
The performance global object and the Performance API provide access to performance-related information for the current execution context.
Learning resources on MDN
Browser support (view on caniuse.com)
- Chrome 6 Released on 2010-09-02
- Chrome Android 18 Released on 2012-06-27
- Edge 12 Released on 2015-07-29
- Firefox 7 Released on 2011-09-27
- Firefox for Android 7 Released on 2011-09-27
- Safari 8 Released on 2014-10-16
- Safari on iOS 9 Released on 2015-09-16
Specifications
- High Resolution Time, from Web Performance Working Group (W3C).
- Performance Timeline, from Web Performance Working Group (W3C).
- Resource Timing, from Web Performance Working Group (W3C).
- User Timing (#extensions-performance-interface), from Web Performance Working Group (W3C).