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

JavaScript
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

License

© 2016 Mozilla Contributors
Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-us/docs/web/api/performancetiming/domainlookupstart

API Navigation Timing PerformanceTiming Property Read-only Reference Référence