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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)
fetchStart2

DNS

EventTiming (ms)
domainLookupStart2
domainLookupEnd2

TCP

EventTiming (ms)
connectStart181
secureConnectionStart195
connectEnd254

Request

EventTiming (ms)
requestStart254

Response

EventTiming (ms)
responseStart549
responseEnd612

Processing

EventTiming (ms)
domInteractive2922
domContentLoadedEventStart2929
domContentLoadedEventEnd2929
domComplete4036

Load

EventTiming (ms)
loadEventStart4045
loadEventEnd4045