Giving you ways to increase, but also explain site performance, to your boss.
summary
Claims that 80–90% of end‑user time lives in the front end and that browsers have a 14 kilobytes slow‑start constraint drive the recommendations. Tools used: sitespeed.io, WebPageTest (video + waterfalls) and the navigation timing API with a polyfill to capture user marks like logo load. Concrete tactics: inline critical CSS, avoid synchronous head JS, serve critical CSS from document domain, measure above‑the‑fold rendering, compare videos, and note caching is unreliable on some mobile devices.
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chapters (10)
- 0:00Introduction to performance
- 1:36The golden rule of speed
- 5:13How the browser renders
- 6:55Small and efficient pages
- 10:01Optimizing CSS and painting
- 13:15Handling JavaScript
- 15:18Measuring performance
- 18:54Performance testing demo
- 25:57Communicating with management
- 30:33Q&A and closing
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