Optimize web font loading
SkillMediaHelps your agent audit and fix slow page loads caused by web fonts.
Available today. Use it from your connected AI after setup.
No other account needed.
Connect ahel once, and every AI you use reads what you have installed.
Then ask your AI: use the Optimize web font loading skill
About this capability
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.
What this skill tells your AI
The instructions your AI receives, as published by thedaviddias/front-end-checklist in skills/font-loading/SKILL.md and read by ahel’s review.
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: swapto 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.
Fix
Add font-display: swap to @font-face declarations and use <link rel='preload'> for the most important fonts.
Explain
Explain how font loading affects perceived performance and layout stability.
Code Review
Review the routes, assets, and loading behavior that affect Optimize web font loading. Flag exact files, requests, or rendering steps that add unnecessary network, CPU, or layout cost, and describe the measurement method used to confirm the issue.
For full implementation details, code examples, and framework-specific guidance,
see references/rule.md.
Rule page: https://frontendchecklist.io/en/rules/performance/font-loading
Signals
- GitHub stars
- 74k
- Forks
- 7k
- Last commit
- Aug 2026
Advanced
- Catalog kind
- skill
- Gateway key
font-loading- Source
- github.com/thedaviddias/front-end-checklist