PerformanceTiming.connectStart

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

The legacy PerformanceTiming.connectStart read-only property returns an unsigned long long representing the moment, in milliseconds since the UNIX epoch, where the request to open a connection is sent to the network. If the transport layer reports an error and the connection establishment is started again, the last connection establisment start time is given. If a persistent connection is used, the value will be the same as PerformanceTiming.fetchStart.

Syntax

time = performanceTiming.connectStart;

Specifications

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

Browser compatibility

BCD tables only load in the browser

See also