Google Analytics Site Speed的指标如何映射到W3C Navigation Timing API？

Question

Dimensions & Metrics Reference上提供的网站速度指标的解释尚不清楚（至少对我而言）。它们代表Navigation Timing API中的事件，但我无法确定哪些事件是每个指标的起点和终点。

Answer 1

GA指标名称（左）到导航计时标签（右）：

        pageLoadTime = loadEventStart - navigationStart
    domainLookupTime = domainLookupEnd - domainLookupStart
serverConnectionTime = connectEnd - connectStart
  serverResponseTime = responseStart - requestStart
    pageDownloadTime = responseEnd - responseStart
     redirectionTime = fetchStart - navigationStart
  domInteractiveTime = domInteractive - navigationStart
domContentLoadedTime = domContentLoadedEventStart - navigationStart