Use Lazy Loading for Off-Screen Images to Improve Performance

Performance Analyzer

What is this warning?

Your page is loading all images immediately, even those that are far down the page and not visible to the user. This wastes data and significantly slows down the initial loading of the content your users see first. By 'lazy loading' these images, you can defer their download until the user scrolls near them.

How to Fix This Issue

How to Fix It

The Problem

An image tag for a below-the-fold image without a loading attribute.

The Solution

Add the `loading="lazy"` attribute to your `<img>` tags for all images that are not part of the initial screen view.

<img src="image-down-the-page.jpg" loading="lazy" alt="...">

Why This Works

Lazy loading is a simple and highly effective technique to reduce initial page weight, speed up rendering, and save bandwidth for your users. It's a native browser feature and a huge win for performance.

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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