Improving Load Time for 100 Million Websites - Wix Case-Study
summary
Wix hosts over 100 million sites and reports concrete wins: server-side rendering cuts time to first contentful paint up to ~70% on mobile and ~40% on desktop while costing tens of thousands per month in CPU, bundling/code-splitting yields 5–25% improvements, progressive render gives up to 50% on heavy pages, HTTP/2 outage shows 10–20% degradation, automated performance regression testing catches regressions before release, and migrating JS layouts to CSS Grid plus the open source stylerball reduces client CPU and parsing overhead.
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chapters (15)
- 0:00Introduction
- 0:57Performance Graph
- 3:07Performance as a Feature
- 5:57Who is Wix
- 7:51Challenges
- 9:12Measuring
- 12:00Performance
- 13:48Serverside Rendering
- 17:53Caching
- 19:59Bundling
- 22:50Use HTTP 2
- 24:29Resource Hints
- 25:32Progressive Render
- 27:37Performance Improvement
- 28:47Summary
