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    PerformanceTiming.domainLookupStart

    Summary

    The 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

    Feature Chrome Firefox (Gecko) Internet Explorer Opera Safari (WebKit)
    Basic support 6.0 7.0 (7.0) 9.0 15.0 Not supported
    Feature Android Firefox Mobile (Gecko) Firefox OS IE Phone Opera Mobile Safari Mobile
    Basic support Not supported 7.0 (7.0) 1.0 (7.0) 9.0 15.0 Not supported

    See also

    Document Tags and Contributors

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