https://glot.io/snippets/h3m54fcrm2

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)
fetchStart2

DNS

EventTiming (ms)
domainLookupStart2
domainLookupEnd2

TCP

EventTiming (ms)
connectStart59
secureConnectionStart69
connectEnd183

Request

EventTiming (ms)
requestStart184

Response

EventTiming (ms)
responseStart256
responseEnd259

Processing

EventTiming (ms)
domInteractive663
domContentLoadedEventStart664
domContentLoadedEventEnd665
domComplete810

Load

EventTiming (ms)
loadEventStart810
loadEventEnd811