Individual skill
performance-resource-hints
Use when auditing slow page loads, heavy assets, or rendering delays related to Use resource hints for faster loading. Verify the actual bottleneck in DevTools, Lighthouse, or field data before recommending changes.
skills/performance-resource-hints/SKILL.md
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- Last checked
- Nov 9, 2026
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- 74,681
- Repository last updated
- Oct 31, 2026
- License
- MIT
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- frontend Repository topic
- front-end-development Repository topic
- front-end-developer-tool Repository topic
- guidelines Repository topic
- checklist Repository topic
- reference Repository topic
- web-development Repository topic
- html Repository topic
- css Repository topic
- javascript Repository topic
- data Derived category
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SKILL.mdcore · 1,762 bytesreferences/rule.mddoc · 6,503 bytes
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# Use resource hints for faster loading
Resource hints let the browser start fetching critical assets earlier—improving LCP by 100-300ms on average.
## Quick Reference
- Use preload for critical above-the-fold resources (fonts, hero images)
- Use preconnect for third-party origins (CDNs, APIs, analytics)
- Use prefetch for resources likely needed on next navigation
- Use dns-prefetch as a lightweight alternative to preconnect
## Check
Analyze resource hints on this page and verify critical resources use preload/preconnect for optimal loading.