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Performance Navigation Timing

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The PerformanceNavigationTiming interface provides metrics regarding the browser's document navigation events

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Process Unload Event

EventTiming (ms)
unloadEventStart0
unloadEventEnd0

Redirect

EventTiming (ms)
redirectStart0
redirectEnd0

Service Worker Init

EventTiming (ms)
workerStart0

Service Worker Fetch Event

EventTiming (ms)
fetchStart0

DNS

EventTiming (ms)
domainLookupStart0
domainLookupEnd0

TCP

EventTiming (ms)
connectStart61
secureConnectionStart70
connectEnd134

Request

EventTiming (ms)
requestStart134

Response

EventTiming (ms)
responseStart735
responseEnd781

Processing

EventTiming (ms)
domInteractive1562
domContentLoadedEventStart4506
domContentLoadedEventEnd4510
domComplete6943

Load

EventTiming (ms)
loadEventStart6947
loadEventEnd6948