This interface of this property is deprecated in the Navigation Timing Level 2
specification. Please use the PerformanceNavigationTiming
interface instead.
The legacy
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
BCD tables only load in the browser
See also
- The
PerformanceTiming
interface it belongs to.