Reduce Total JavaScript Size for Faster Page Interactivity

Web Vitals Analyzer

What is this warning?

The combined size of all JavaScript on your page is very large. This increases download times, parsing, and execution, directly impacting Time to Interactive (TTI) and Interaction to Next Paint (INP) scores.

How to Fix This Issue

How to Fix It

The Problem

A webpage loading multiple large JavaScript bundles.

The Solution

Implement code splitting to load JavaScript only when needed, remove unused libraries, and ensure all scripts are minified and compressed.

Why This Works

Smaller JavaScript payloads mean faster downloads, quicker parsing, and less main thread blocking, leading to a more responsive and interactive page.

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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