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  • Book Overview & Buying Responsive Design High Performance
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Responsive Design High Performance

Responsive Design High Performance

By : Els
3 (2)
Buy this Book
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Responsive Design High Performance

Responsive Design High Performance

3 (2)
By: Els
Buy this Book

Overview of this book

This book is ideal for developers who have experience in developing websites or possess minor knowledge of how responsive websites work. No experience of high-level website development or performance tweaking is required.
Table of Contents (11 chapters)
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Preface
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Preface
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What is responsive design, anyway?
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What this book covers
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What you need for this book
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Who this book is for
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Conventions
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Reader feedback
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Customer support
Lock Free Chapter
1
1. The Good, the Bad, and the Ugly of Responsive Web Design
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1. The Good, the Bad, and the Ugly of Responsive Web Design
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The good – appearance and management
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The bad – slow load times and unresponsive interactions
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The ugly – the effects of slow performance
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Summary
2
2. Tweaking Your Website for Performance
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2. Tweaking Your Website for Performance
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Resource placement on the DOM
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Adjusting the sections
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DNS prefetching
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Too many DOM Elements
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Summary
3
3. Managing Images
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3. Managing Images
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Choosing the correct image format
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Optimizing images
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Conditional loading
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One-to-many DOM elements
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Specifying sizes and media queries and introducing sprite sheets
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Caching
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Scaling
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Retina displays
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Summary
4
4. Learning Content Management
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4. Learning Content Management
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Style sheets, media queries, and viewports
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Sassy CSS, SASS, and LESS
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Background images and media queries
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Using JavaScript to ease the load
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Conditional content management
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The server side with PHP
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Parallel downloads
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Content Delivery Networks
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Fonts
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Summary
5
5. The Fastest HTTP Request is No HTTP Request
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5. The Fastest HTTP Request is No HTTP Request
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Reducing the number of requests
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Combining files
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Server-side optimization with Apache
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Compression
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ETags
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Expires headers
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File concatenation
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AppCache
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Summary
6
6. Testing, Testing, and Testing!
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6. Testing, Testing, and Testing!
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Beginning your testing adventure
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Back to the responsive stuff
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Summary
7
7. Speeding Up Development with Design Concepts, Patterns, and Programs
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7. Speeding Up Development with Design Concepts, Patterns, and Programs
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Design concepts
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Summary
8
8. Using Tools for Performance
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8. Using Tools for Performance
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Planning
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Developing
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Managing code changes
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Summary
9
A. Taking the Next Steps
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A. Taking the Next Steps
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An overview of what we've covered so far
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A few references for further reading
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Summary
10
Index
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Index

Compression

Using compression on your content can minimize the size of the content being delivered. This is done by compressing it when it is being transferred from the server and deflating it when it arrives at the client location. This is done by the following code line:

<IfModule mod_deflate.c>

The preceding piece of code checks whether the module to compress/deflate the content is currently enabled on the server.

You might wonder if compression has a notable effect on your website? Take a look at this screenshot that I took from a website using GZIP compression.

As you can see from the screenshot, the website file size was reduced by 76.6%, which is more than half its original size. A great place to test the compression is to go to http://www.feedthebot.com/tools/gzip/ and enter your web URL.

If you're using a NGINX server, the code will be slightly different; here is a sample:

gzip on;
gzip_comp_level 2;
gzip_http_version 1.0;
gzip_proxied any;
gzip_min_length 1100;
gzip_buffers 16...
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Tech Concepts
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Programming languages
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