MODULE 11 · 5 lessons · 5 challenges

Web Performance

Five lessons that turn "the site feels slow" into measurable, fixable problems. Core Web Vitals as the language, image and font optimisation as the biggest single wins, render-blocking resources as the most-overlooked culprit, code splitting / tree-shaking as the build-pipeline lever, and reading the network waterfall as the diagnostic skill.

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All lessons in this module

1. Core Web Vitals — LCP, INP, CLS

Web Performance Quiz Challenge

2. Image Optimization — Formats, srcset, lazy loading

Web Performance Quiz Challenge

3. Render-Blocking Resources & Critical CSS

Web Performance Quiz Challenge

4. Code Splitting, Tree-Shaking & Bundle Diet

Web Performance Quiz Challenge

5. Reading the Network Waterfall

Web Performance Quiz Challenge