Summary
The PerformanceTiming
.responseStart
read-only property returns an unsigned long long
representing the moment in time (in milliseconds since the UNIX epoch) when the browser received the first byte of the response from the server, cache, or local resource.
Syntax
time = performanceTiming.responseStart;
Specifications
Specification | Status | Comment |
---|---|---|
Navigation Timing The definition of 'PerformanceTiming.responseStart' in that specification. |
Recommendation | Initial definition. |
Browser compatibility
Feature | Chrome | Edge | Firefox (Gecko) | Internet Explorer | Opera | Safari (WebKit) |
---|---|---|---|---|---|---|
Basic support | 6.0 | (Yes) | 7.0 (7.0) | 9.0 | 15.0 | No support |
Feature | Android | Edge | Firefox Mobile (Gecko) | Firefox OS | IE Phone | Opera Mobile | Safari Mobile |
---|---|---|---|---|---|---|---|
Basic support | No support | (Yes) | 7.0 (7.0) | 1.0 (7.0) | 9.0 | 15.0 | No support |
See also
- The
PerformanceTiming
interface it belongs to.