Is Responsive Web Design (RWD) slowing your site down? Itdoesn’t have to. With this concise book, you’ll learn practical techniques forimproving performance with RWD, including a default set of guidelines you canuse as an easy starting point. Web performance researcher and evangelist GuyPodjarny walks you through several existing solutions for dealing with RWDperformance problems, and offers advice for choosing optimizations that will bemost useful for your needs.
RWD performance problems stem from excessive downloads ofresources, including images, JavaScript and CSS, and HTML—downloads designed tolet your web application adapt to different screen sizes. Podjarny presents aseries of increasingly larger-scope solutions to each issue, includingclient-side techniques and RESS (Responsive + Server Side Components).
Address performance issues by starting with Podjarny’s default guidelines
Use a JavaScript image loader and an image transcoding service to create Responsive Images
Reduce JavaScript and CSS downloads with asynchronous scripts, conditional loading, and multi-viewport CSS
Prioritize resources to avoid excess content in RWD and defer the load of any content that’s not critical
Explore server-side Adaptive Delivery and RESS solutions as an alternative to “pure” RWD
Guy Podjarny, or Guypo for short, is the Chief TechnologyOfficer (CTO) of Akamai’s Web Experience business unit.
