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 milliseconds 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
BCD tables only load in the browser
See also
- The
PerformanceTiming
interface it belongs to.