May 2017
42m
English
Closed Captioning available in German, English, Spanish, French, Japanese, Korean, Portuguese (Portugal, Brazil), Chinese (Simplified), Chinese (Traditional)
Overview
You’ve measured the performance of your site using developer tools on your computer. But what do real users see when they go to your site? Ben Maurer discusses how Facebook pieces together data from multiple sources—load balancers, CDNs, HHVM, resource timing, navigation timing, etc.—and uses it to make a fast site.