Chuỗi bài · 4 phần
Font Performance Playbook
Optimize web font loading from first principles — subsetting, preloading, display strategies, and Core Web Vitals.
1
Web Performance
Web Font Performance: The Complete Optimization Guide
Everything you need to know about font performance — file size, loading strategies, render blocking, and how fonts affect Core Web Vitals.
2
Web Performance
Font Subsetting: Cut Font File Sizes by 90%
Most web fonts contain thousands of unused characters. Learn how to subset fonts to load only what you need — cutting file sizes dramatically.
3
Web Performance
Font Preloading: Prioritize Your Most Important Fonts
Use <link rel=preload> to tell the browser which fonts matter most. Reduce FOUT, improve LCP, and understand when preloading helps vs. hurts.
4
Web Performance
font-display: swap, fallback, optional — Which to Choose
The font-display CSS descriptor controls what users see while fonts load. Each value has tradeoffs — here's how to choose the right one.