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商品描述
Is Responsive Web Design (RWD) slowing your site down? It doesn’t have to. With this concise book, you’ll learn practical techniques for improving performance with RWD, including a default set of guidelines you can use as an easy starting point. Web performance researcher and evangelist Guy Podjarny walks you through several existing solutions for dealing with RWD performance problems, and offers advice for choosing optimizations that will be most useful for your needs.
RWD performance problems stem from excessive downloads of resources, including images, JavaScript and CSS, and HTML—downloads designed to let your web application adapt to different screen sizes. Podjarny presents a series of increasingly larger-scope solutions to each issue, including client-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 Technology Officer (CTO) of Akamai’s Web Experience business unit.
商品描述(中文翻譯)
RWD是否拖慢了您的網站速度?其實並不一定。這本簡明的書籍將教您如何通過實用技巧來改善RWD的性能,包括一組預設指南,可作為輕鬆入門的起點。網絡性能研究員和推廣者Guy Podjarny將引導您了解處理RWD性能問題的幾種現有解決方案,並提供選擇最適合您需求的優化建議。
RWD性能問題源於過多的資源下載,包括圖片、JavaScript和CSS以及HTML,這些下載旨在讓您的網絡應用程序適應不同的屏幕尺寸。Podjarny提出了一系列越來越大範圍的解決方案,包括客戶端技術和RESS(Responsive + Server Side Components)。
以下是本書的主要內容:
- 根據Podjarny的預設指南解決性能問題
- 使用JavaScript圖片加載器和圖片轉碼服務創建響應式圖片
- 通過異步腳本、條件加載和多視口CSS減少JavaScript和CSS的下載
- 通過優先級資源避免RWD中的過多內容,並延遲加載非關鍵內容
- 探索服務器端自適應交付和RESS解決方案,作為“純”RWD的替代方案
Guy Podjarny,簡稱Guypo,是Akamai Web Experience業務部門的首席技術官(CTO)。