Web Font Optimization

Best practices for optimizing web fonts

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Format Selection

Use WOFF2 for best compression and browser support

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Font Subsetting

Include only necessary characters to reduce file size

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Caching Strategy

Set proper cache headers for repeat visits

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CDN Delivery

Use content delivery networks for faster loading

/* Example of optimized @font-face rule */
@font-face {
  font-family: 'OptimizedFont';
  src: url('font-subset.woff2') format('woff2');
  font-display: swap;
  unicode-range: U+000-5FF;
}

speed Performance Impact

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First Contentful Paint
Reduced by 100-500ms
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Layout Shift
Minimized or eliminated
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File Size
60-90% smaller with subsetting
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Requests
Reduced with proper hosting

tips_and_updates Advanced Optimization Tips

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Use variable fonts to replace multiple font files

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Implement preloading for critical above-the-fold fonts

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Consider self-hosting for better control and privacy

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Use font-face descriptors to reduce loading impact

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Test performance with WebPageTest or Lighthouse