Web Speed in Perfection
summary
Claims specific numbers: human visual parse ~14 ms then ~140 ms to decide where to focus so 200 ms goal for perceived instantness, and a realistic target of below 3 seconds (Akamai: half of users abandon ~3 s; Amazon/Walmart benefit from 100 ms wins). Concrete tools and tactics shown: gzip and caching, scaled responsive images, async scripts, preload/prerender (demoed caveats on analytics and browser support), skeleton screens and streaming content. A demo site is transformed stepwise and these no‑brainer changes do produce measurable speed and much better perceived performance.
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chapters (11)
- 0:00Start
- 2:10Realistic Goal
- 6:33Caching
- 7:48Preload
- 8:12Pre-Render
- 13:28The Holiday Paradox
- 13:42H Paradox
- 14:40The Spinner
- 15:22Skeleton Screen
- 16:24The Emotional Paradox
- 16:51The Input Paradox
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