A faster website! (aka defer.js)

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#defer-js #lazyload #optimize #pagespeed #performance

Code

⚡️ Experience lightning-fast load times with our native, blazingly quick lazy loader. ✅ Backward compatible with legacy browsers (IE9+). 💯 SEO-optimized. 🧩 Lazy-load everything.

This plugin empowers you to optimize a wide range of elements, including images, videos, audio, iframes, stylesheets, and JavaScript, for a seamless user experience.

Leveraging tips from seasoned web experts and harnessing the latest web technologies for resource lazy-loading, this plugin ensures your website operates at peak efficiency, providing your visitors with a lightning-fast browsing experience.

If you find this plugin valuable, please consider leaving a 5-star review (⭐️⭐️⭐️⭐️⭐️) to support my efforts.

What People Love

⚡️ Native API, blazingly fast performance
👍 Support for legacy browsers (IE9+)
🥇 SEO-friendly optimization
✅ Incredibly easy to use
💯 No dependencies, no jQuery required
🤝 Works seamlessly with your favorite frameworks
🧩 Utilizes IntersectionObserver API for optimized CPU usage
🏞 Supports responsive images with srcset and sizes attributes

💡 Tip: For optimal results, consider disabling optimization features from other plugins (e.g., lazy-loading, HTML minification, JS minification).

We recommend using this plugin alongside another page-caching solution for best performance.

Browser support

This plugin also works perfectly on popular browsers, including Internet Explorer 9 and later.

🖥 IE9+ / Microsoft EDGE
🖥 Firefox 4+
🖥 Safari 3+
🖥 Chrome
🖥 Opera
📱 Android 4+
📱 iOS 3.2+

Powered by defer.js, defer.php

defer.js
🥇 A super small, super efficient library that helps you lazy load almost everything like images, video, audio, iframes as well as stylesheets, and JavaScript.

defer.php
🚀 A PHP library that focuses on minimizing payload size of HTML document and optimizing processing on the browser when rendering the web page.