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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)
fetchStart1

DNS

EventTiming (ms)
domainLookupStart1
domainLookupEnd1

TCP

EventTiming (ms)
connectStart44
secureConnectionStart53
connectEnd372

Request

EventTiming (ms)
requestStart373

Response

EventTiming (ms)
responseStart672
responseEnd739

Processing

EventTiming (ms)
domInteractive1122
domContentLoadedEventStart1122
domContentLoadedEventEnd1122
domComplete1350

Load

EventTiming (ms)
loadEventStart1350
loadEventEnd1364