Eliminate Render-Blocking Scripts for Faster Page Rendering

Web Vitals Analyzer

What is this warning?

Scripts on your page are blocking the browser from rendering content, causing delays in when users see your page. This directly impacts First Contentful Paint (FCP) and Largest Contentful Paint (LCP) scores.

How to Fix This Issue

How to Fix It

The Problem

<script src="large-script.js"></script>

The Solution

Add async or defer attributes to non-critical scripts.

<script src="large-script.js" defer></script>

Why This Works

Non-blocking scripts allow the browser to continue rendering the page while scripts load in the background, improving FCP and LCP scores.

SEO Impact

This issue can affect your site's search engine rankings and user experience. Addressing it promptly helps ensure optimal performance and visibility in search results.

Automatic Detection

Black SEO Analyzer automatically checks for this warning during site analysis, along with hundreds of other technical SEO issues.

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