SMRTR ProgrammingApr 4, 2025LogRocket

How to eliminate render-blocking resources — CSS and JavaScript

SMRTR summary

Render-blocking resources like CSS and JavaScript can slow down page loading. To improve speed and SEO, developers can inline critical CSS, defer non-critical resources, lazy load JavaScript, cache third-party scripts, and remove unused code. These optimizations can significantly boost page performance and Core Web Vitals metrics.

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