PerformanceTiming.requestStart

This interface of this property is deprecated in the Navigation Timing Level 2 specification. Please use the PerformanceNavigationTiming interface instead.

The legacy PerformanceTiming.requestStart read-only property returns an unsigned long long representing the moment, in milliseconds since the UNIX epoch, when the browser sent the request to obtain the actual document, from the server or from a cache. If the transport layer fails after the start of the request and the connection is reopened, this property will be set to the time corresponding to the new request.

Syntax

time = performanceTiming.requestStart;

Specifications

Specification Status Comment
Navigation Timing
The definition of 'PerformanceTiming.requestStart' in that specification.
Recommendation Initial definition.

Browser compatibility

BCD tables only load in the browser

See also