[Web] PerformanceNavigationTiming

 

https://developer.mozilla.org/en-US/docs/Web/API/PerformanceNavigationTiming

 

1. DNS
   • domainLookupStart
   • domainLookupEnd
2. TCP / TLS
   • connectStart
   • secureConnectionStart
   • connectEnd
3. HTTP Request
   • requestStart
4. HTTP Response
   • responseStart
   • responseEnd
5. Processing
   • domLoading (sometimes, it can happens before responseEnd)
   • domInteractive
   • domContentLoadedEventStart (loading async /defer scripting)
   • domContentLoadedEventEnd
   • domComplete (everything is ready)
6. Load
   • loadEventStart
   • loadEventEnd