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LinkedIn Learning

Developing for Web Performance

via LinkedIn Learning

Overview

Develop your websites and applications with performance in mind. Learn how to create a realistic performance budget; optimize images, code, and file caching; and more.

Syllabus

Introduction
  • What is performance and why is it so important?
1. Web Performance: An Introduction
  • What is web performance and optimization?
  • How do we measure performance?
  • Why does performance matter?
2. Web Performance Basics
  • How browsers render content
  • HTTP/2 and multiplexing
  • Bottlenecks
  • Caching
  • The PRPL pattern
3. Creating a Performance Budget
  • What is a performance budget?
  • Creating a realistic performance budget
  • Common culprits and performance hogs
4. Optimizing Images
  • Images are the leading cause of the slow web
  • Image quality matters
  • The image scaling hack
  • Image format options
  • Manual image optimization
  • Automated image optimization
  • Responsive images
  • Lazy-loading images
5. Markup and Content
  • Automated optimization of JavaScript and CSS
  • JavaScript bundling vs. modules
  • JavaScript loading: Async and defer
  • Lazy-loading JavaScript modules with import()
  • Minifying and uglifying JavaScript
  • Critical CSS
  • Deferring noncritical CSS
  • Component-based CSS loading
6. Web Fonts
  • Web fonts can be major performance hogs
  • Optimizing third-party web font delivery
  • Optimizing self-hosted web font delivery
  • Variable fonts to the rescue?
  • Web fonts on a performance budget
7. Optimizing Delivery
  • Compress data with Gzip and Brotli
  • Server push
  • Preloading vs. prefetch
  • Browser caching
  • CDNs
Conclusion
  • Thank you

Taught by

Morten Rand-Hendriksen

Reviews

4.8 rating at LinkedIn Learning based on 348 ratings

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