// LEARN / PERFORMANCE

Fix Render-Blocking Resources

Critical CSS, deferred JS, async loading, font-display swap, resource hints. What actually moves LCP vs cosmetic improvements.

By Mike Technical SEO Consultant

2026-05-21 · 5 min

Full article publishes in the next 1-2 weeks. Below is the outline this article will cover.

Overview

Critical CSS, deferred JS, async loading, font-display swap, resource hints. What actually moves LCP vs cosmetic improvements.

Topics covered

fix render blocking
render blocking css
render blocking javascript
critical css
defer javascript

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In plain English: Deep-dive on render blocking resources. If you need this fixed on your own site, send the URL and you'll get a Loom walkthrough back within 48 hours.