Optimize Loading of Blocking Third-Party Scripts

JavaScript Analyzer

What is this warning?

A script from another website is blocking your page from loading. This is a serious performance issue. You are at the mercy of the other website's server speed, and if it's slow, your page will be slow. It's crucial to load these scripts in a way that doesn't hold your own content hostage.

How to Fix This Issue

How to Fix It

The Problem

<script src="https://some-third-party.com/widget.js"></script>

The Solution

Always load third-party scripts with the `async` or `defer` attribute. `async` is often best for self-contained widgets like analytics or ads.

<script src="https://some-third-party.com/widget.js" async></script>

Why This Works

Using `async` or `defer` tells the browser to download the script without stopping the rest of the page from rendering. This ensures that a slow third-party service doesn't ruin your user's experience on your site.

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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