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first-contentful-paint

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

skills/first-contentful-paint/SKILL.md

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Oct 31, 2026
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# Optimize first contentful paint

FCP is the first visual signal that a page is loading—fast FCP reassures users that the site is responding, reducing perceived wait time and bounce rates.

## Quick Reference

- FCP measures time until first text/image appears—target under 1.8s
- Eliminate render-blocking CSS and JavaScript
- Inline critical CSS for above-fold content
- Use preconnect for third-party origins

## Check

Measure FCP using Lighthouse or PageSpeed Insights. Verify first content appears within 1.8 seconds.
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