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Performance Navigation Timing

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)
connectStart44
secureConnectionStart53
connectEnd359

Request

EventTiming (ms)
requestStart359

Response

EventTiming (ms)
responseStart420
responseEnd462

Processing

EventTiming (ms)
domInteractive544
domContentLoadedEventStart544
domContentLoadedEventEnd546
domComplete546

Load

EventTiming (ms)
loadEventStart546
loadEventEnd546