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font-loading

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Use when auditing slow page loads, heavy assets, or rendering delays related to Optimize web font loading. Verify the actual bottleneck in DevTools, Lighthouse, or field data before recommending changes.

skills/font-loading/SKILL.md

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# Optimize web font loading

Slow font loading can cause 'Flash of Invisible Text' (FOIT) or significant layout shifts, negatively impacting both user experience and Core Web Vitals.

## Quick Reference

- Use `font-display: swap` to prevent invisible text during load
- Preload critical fonts to discover them earlier
- Use modern formats like WOFF2 for better compression

## Check

Check font loading strategies and verify that `font-display` is used and critical fonts are preloaded.
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