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The PerformanceTiming.secureConnectionStart read-only property returns an unsigned long long representing the moment, in miliseconds since the UNIX epoch, where the secure connection handshake starts. If no such connection is requested, it returns 0.


time = performanceTiming.secureConnectionStart;


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

Browser compatibility

Feature Chrome Firefox (Gecko) Internet Explorer Opera Safari (WebKit)
Basic support 6.0 56.0 (56.0) 9.0 15.0 No support
Feature Android Firefox Mobile (Gecko) IE Phone Opera Mobile Safari Mobile
Basic support No support 56.0 (56.0) 9.0 15.0 No support

See also

Document Tags and Contributors

 Contributors to this page: chrisdavidmills, fscholz, namolmes, teoli
 Last updated by: chrisdavidmills,