The road to RUM

With the W3C's Navigation Timing API, we can finally measure browser performance easily and reliably. Here's how the API developed and where we are today. The Road to RUM Real User Monitoring 2008 Jiffy Episodes Pre-Navigation Timing website performance frameworks 2009 Boomerang Navigation Timing - W3C Editor's Draft Chrome 6 adds support for Navigation Timing Navigation Timing - W3C Working Draft v1 Navigation Timing - W3C Working Draft v2 2010 2011 Navigation Timing - W3C Working Draft v3 Internet Explorer 9 adds support for Navigation Timing Navigation Timing - W3C Candidate Recommendation v1 Navigation Timing - W3C Candidate Recommendation v2 Firefox 7 adds support for Navigation Timing Android 4 browser adds support for Navigation Timing 2012 Navigation Timing - W3C Candidate Recommendation v3 Navigation Timing - W3C Candidate Recommendation v4 Navigation Timing - W3C Proposed Recommendation Navigation Timing Based on the Navigation Timing specification, here is our model of the loading process of a web page. navigationStart loadEventEnd REDIRECT loadEventStart fetchStart RENDER domComplete domContentEventEnd domainLookupStart domContentLoadedEventStart domlnteractive > domainLookupEnd domLoading CONNECT connectStart responseEnd SEND connectEnd responseStart requestStart Browsers Supporting Navigation Timing Coming: : BlackBerry ρingdom RECEIVE BACKEND FRONTEND NETWORK DNS With the W3C's Navigation Timing API, we can finally measure browser performance easily and reliably. Here's how the API developed and where we are today. The Road to RUM Real User Monitoring 2008 Jiffy Episodes Pre-Navigation Timing website performance frameworks 2009 Boomerang Navigation Timing - W3C Editor's Draft Chrome 6 adds support for Navigation Timing Navigation Timing - W3C Working Draft v1 Navigation Timing - W3C Working Draft v2 2010 2011 Navigation Timing - W3C Working Draft v3 Internet Explorer 9 adds support for Navigation Timing Navigation Timing - W3C Candidate Recommendation v1 Navigation Timing - W3C Candidate Recommendation v2 Firefox 7 adds support for Navigation Timing Android 4 browser adds support for Navigation Timing 2012 Navigation Timing - W3C Candidate Recommendation v3 Navigation Timing - W3C Candidate Recommendation v4 Navigation Timing - W3C Proposed Recommendation Navigation Timing Based on the Navigation Timing specification, here is our model of the loading process of a web page. navigationStart loadEventEnd REDIRECT loadEventStart fetchStart RENDER domComplete domContentEventEnd domainLookupStart domContentLoadedEventStart domlnteractive > domainLookupEnd domLoading CONNECT connectStart responseEnd SEND connectEnd responseStart requestStart Browsers Supporting Navigation Timing Coming: : BlackBerry ρingdom RECEIVE BACKEND FRONTEND NETWORK DNS