Book Image

AMP: Building Accelerated Mobile Pages

By : Ruadhan O'Donoghue
Book Image

AMP: Building Accelerated Mobile Pages

By: Ruadhan O'Donoghue

Overview of this book

Google introduced the Accelerated Mobile Pages (AMP) project to give mobile users lightning-fast response times when accessing web pages on mobile devices. AMP delivers great user experiences by providing a framework for optimizing web pages that otherwise would take much longer to load on a mobile platform. This book shows how to solve page performance issues using the mobile web technologies available today. You will learn how to build instant-loading web pages, and have them featured more prominently on Google searches. If you want your website to succeed on mobile, if you care about SEO, and if you want to stay competitive, then this book is for you! You will go on a mobile web development journey that demonstrates with concrete examples how to build lightning-fast pages that will keep your visitors on-site and happy. This journey begins by showing how to build a simple blog article-style web page using AMP. As new concepts are introduced this page is gradually refined until you will have the skills and confidence to build a variety of rich and interactive mobile web pages. These will include e-commerce product pages, interactive forms and menus, maps and commenting systems, and even Progressive Web Apps.
Table of Contents (24 chapters)
Title Page
About the Author
About the Reviewer
Customer Feedback
Actions and Events
amp-bind Permitted Attribute Bindings

Using placeholders and fallbacks to improve user experience

To deliver the best user experience, placeholder and fallback elements should be used when appropriate. Placeholders are displayed in place of an element until that element is ready to be rendered, while fallbacks are displayed instead of an element when the element is not supported in a browser.


An element with the placeholder attribute acts as a placeholder for its parent. Placeholders are displayed immediately for an element, before the element has been downloaded or initialized. When the actual element is ready, the placeholder is hidden, and the element content is displayed.

Thus, placeholders can be used to stand in place of a slower-to-load element. You might use this, for instance, to display a fast-loading, low-resolution image in place of a video or high-resolution image. The latter is the same trick that sites such as Medium ( and Facebook use to deliver a quick page-loading experience. They show...