PerformanceTiming: domainLookupStart property
{{APIRef("Performance API")}} {{Deprecated_Header}}
[!WARNING] This interface of this property is deprecated in the Navigation Timing Level 2 specification. Please use the
{{domxref("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 {{domxref("PerformanceTiming.fetchStart")}} .
Value
An unsigned long long.
Specifications
{{Specifications}}
Browser compatibility
{{Compat}}
See also
- The
{{domxref("PerformanceTiming")}}interface it belongs to.