Technical SEO
Render-blocking resource
A render-blocking resource is a script or stylesheet that must load before the browser can show the page. Too many of them delay what the visitor sees.
Large CSS files in the head and synchronous scripts are the usual culprits. They push back the moment the page becomes useful.
Deferring non-critical scripts and inlining critical CSS lets the page paint sooner, which helps Core Web Vitals and visitors alike.
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