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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)
connectStart53
secureConnectionStart64
connectEnd84

Request

EventTiming (ms)
requestStart84

Response

EventTiming (ms)
responseStart462
responseEnd484

Processing

EventTiming (ms)
domInteractive1786
domContentLoadedEventStart1786
domContentLoadedEventEnd1863
domComplete2693

Load

EventTiming (ms)
loadEventStart2693
loadEventEnd2701