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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)
connectStart38
secureConnectionStart52
connectEnd91

Request

EventTiming (ms)
requestStart91

Response

EventTiming (ms)
responseStart297
responseEnd421

Processing

EventTiming (ms)
domInteractive425
domContentLoadedEventStart425
domContentLoadedEventEnd425
domComplete802

Load

EventTiming (ms)
loadEventStart802
loadEventEnd802