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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)
unloadEventStart51
unloadEventEnd51

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)
connectStart1
secureConnectionStart1
connectEnd1

Request

EventTiming (ms)
requestStart5

Response

EventTiming (ms)
responseStart43
responseEnd84

Processing

EventTiming (ms)
domInteractive85
domContentLoadedEventStart85
domContentLoadedEventEnd85
domComplete132

Load

EventTiming (ms)
loadEventStart132
loadEventEnd132