Font Optimization Guides
Learn how to optimize web fonts for performance. From quick fixes like font-display: swap to advanced subsetting techniques that reduce file sizes by 90%+.
Quick Answer
To optimize web fonts: Convert to WOFF2 format, subset to remove unused characters (70-95% size reduction), use font-display: swap to eliminate invisible text, and preload critical fonts. Use Sift to do all this in seconds.
Performance Guides
Optimize font loading for Core Web Vitals, fix Lighthouse warnings, and achieve faster page loads.
Subsetting Guides
Remove unused characters from fonts to achieve 70-95% file size reduction.
Variable Fonts Guides
Master variable font technology — axes, instances, and optimization techniques.
Formats Guides
Understand web font formats and when to use WOFF2, WOFF, TTF, or OTF.
CSS Guides
CSS best practices for @font-face declarations, fallbacks, and font loading.
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