Why it’s important

• [ ] WPO Stats (website)
• [ ] Why performance matters (website)

Testing

• [ ] PageSpeed Insights (website)
• [ ] Setup Lighthouse in pull requests (article)
• [ ] Lighthouse in DevTools (docs)
• [ ] WebPageTest (website)
• [ ] What does my site cost? (website)

General rule of thumb

• [ ] Reduce number of requests
• [ ] Minify assets
• [ ] Concatenate assets (make multiple files into one)
• [ ] Lazy load/defer loading (tweet)

Images