PerformanceTiming and PerformanceNavigationThe window.performance.timing and window.performance.navigation APIs report performance timing information for events that occur during the loading and use of the current page.performancePerformancelimitedhttps://w3c.github.io/navigation-timing/#obsoletehttps://developer.mozilla.org/docs/Web/API/PerformanceTimingapi.Performance.navigationapi.Performance.timingapi.PerformanceNavigationapi.PerformanceNavigation.redirectCountapi.PerformanceNavigation.toJSONapi.PerformanceNavigation.typeapi.PerformanceTimingapi.PerformanceTiming.connectEndapi.PerformanceTiming.connectStartapi.PerformanceTiming.domCompleteapi.PerformanceTiming.domContentLoadedEventEndapi.PerformanceTiming.domContentLoadedEventStartapi.PerformanceTiming.domInteractiveapi.PerformanceTiming.domLoadingapi.PerformanceTiming.domainLookupEndapi.PerformanceTiming.domainLookupStartapi.PerformanceTiming.fetchStartapi.PerformanceTiming.loadEventEndapi.PerformanceTiming.loadEventStartapi.PerformanceTiming.navigationStartapi.PerformanceTiming.redirectEndapi.PerformanceTiming.redirectStartapi.PerformanceTiming.requestStartapi.PerformanceTiming.responseEndapi.PerformanceTiming.responseStartapi.PerformanceTiming.secureConnectionStartapi.PerformanceTiming.toJSONapi.PerformanceTiming.unloadEventEndapi.PerformanceTiming.unloadEventStarthttps://nowyoucanuse.com/features--performancetiming.html