PERFORMANCE OPTIMIZATION

TECHNICAL DOCUMENTATION

Documentation of FYT's performance optimization strategies. Built for low-bandwidth environments and maximum efficiency.

CURRENT METRICS

Measured performance
Bundle Sizes (Home):
  • JavaScript: 61.46 KB
  • CSS: 14.00 KB
Lighthouse Scores (Home):
  • Performance: 91%
  • First Contentful Paint (FCP): 1.96s
  • Largest Contentful Paint (LCP): 3.16s
  • Total Blocking Time (TBT): 17ms
  • Cumulative Layout Shift (CLS): 0.05

OPTIMIZATION STRATEGIES

How we achieved these metrics
1. Font Optimization:
  • Removed Unused Fonts: Oswald, Fjalla One, Staatliches, Barlow Condensed, Special Elite, Roboto Slab
  • Retained Fonts: Bebas Neue, Anton, Russo One, Courier Prime, Zilla Slab, Bitter, Arvo
  • Benefit: Reduced font loading time and bundle size
  • Implementation: Optimized @import statements in src/index.css
2. CSS Optimization:
  • Print Media Optimization: Comprehensive print stylesheet
  • Tailwind Optimization: Purged unused utility classes
  • Result (current): 63.58 KB gzipped CSS
3. JavaScript Optimization:
  • Code Splitting: Lazy-loaded components
  • Tree Shaking: Removed unused code
  • Minification: Production builds optimized
  • Result (current): 61.46 KB gzipped JavaScript
4. Image Optimization:
  • SVG Optimization: Inline SVGs for critical graphics
  • Responsive Images: Proper sizing for different viewports
  • Lazy Loading: Deferred loading for below-fold images

PERFORMANCE TARGETS

Goals and achievements
MetricTargetCurrentStatus
JS Size (gz)< 700 KB61.46 KB
CSS Size (gz)< 80 KB14.00 KB
FCP< 2.5s1.96s
LCP< 4s3.16s
Lighthouse (Home)> 9091%

TESTING & VERIFICATION

How to verify performance
Run Lighthouse:
BASH
# Build and run Lighthouse
npm run lighthouse:build

# Run Lighthouse CI
npm run lighthouse:ci
Check Bundle Sizes:
BASH
# Build and check output
npm run build
Lighthouse CI Configuration:
  • Configured in lighthouserc.json
  • Assertions ensure performance doesn't regress
  • Runs automatically in CI pipeline
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