PerformanceTiming.domainLookupStart

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

The legacy PerformanceTiming.domainLookupStart read-only property returns an unsigned long long representing the moment, in miliseconds since the UNIX epoch, where the domain lookup starts. If a persistent connection is used, or the information is stored in a cache or a local resource, the value will be the same as PerformanceTiming.fetchStart.

Syntax

time = performanceTiming.domainLookupStart;

Specifications

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

Browser compatibility

FeatureChromeEdgeFirefoxInternet ExplorerOperaSafari
Basic support6 Yes7915 No
FeatureAndroid webviewChrome for AndroidEdge mobileFirefox for AndroidOpera AndroidiOS SafariSamsung Internet
Basic support Yes Yes Yes715 No ?

See also

Document Tags and Contributors

Contributors to this page: fscholz, abbycar, kscarfone, teoli
Last updated by: fscholz,