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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)
connectStart57
secureConnectionStart69
connectEnd834

Request

EventTiming (ms)
requestStart834

Response

EventTiming (ms)
responseStart1363
responseEnd1366

Processing

EventTiming (ms)
domInteractive1388
domContentLoadedEventStart1388
domContentLoadedEventEnd1388
domComplete2193

Load

EventTiming (ms)
loadEventStart2193
loadEventEnd2193