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Summary
The PerformanceTiming.domInteractive read-only property returns an unsigned long long representing the moment, in miliseconds since the UNIX epoch, when the parser finished its work on the main document, that is when its Document.readyState changes to 'interactive' and the corresponding readystatechange event is thrown.
This property can be used to measure the speed of loading Web sites that users feels. Nevertheless there are a few caveats that happens if scripts are blocking rendering and not loaded asynchronously or with custom Web fonts. Check if you are in one of these cases before using this property as a proxy for the user experience of a Web site's speed of loading.
Syntax
time = performanceTiming.domInteractive;
Specifications
| Specification | Status | Comment |
|---|---|---|
| Navigation Timing The definition of 'PerformanceTiming.domInteractive' in that specification. |
Recommendation | Initial definition. |
Browser compatibility
| Feature | Chrome | Firefox (Gecko) | Internet Explorer | Opera | Safari (WebKit) |
|---|---|---|---|---|---|
| Basic support | 6.0 | 7.0 (7.0) | 9.0 | 15.0 | Not supported |
| Feature | Android | Firefox Mobile (Gecko) | Firefox OS | IE Phone | Opera Mobile | Safari Mobile |
|---|---|---|---|---|---|---|
| Basic support | Not supported | 7.0 (7.0) | 1.0 (7.0) | 9.0 | 15.0 | Not supported |
See also
- The
PerformanceTiminginterface it belongs to. - The article "domInteractive: is it? really?" explaining when you can use this property as a proxy for the user experience of loading a Web site.