A faster website! (aka defer.js)

⚡️ 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.

Key features

• [x] Embed defer.js plugin
• [x] Normalize DOM elements
• [x] Fix missing meta tags
• [x] Fix missing media attributes
• [x] Preconnect to required origins
• [x] Preload key requests
• [x] Prefetch key requests
• [x] Browser-level image lazy-loading for the web
• [x] Lazy-load offscreen and hidden iframes
• [x] Lazy-load offscreen and hidden videos
• [x] Lazy-load offscreen and hidden images
• [x] Lazy-load CSS background images
• [x] Reduce the impact of JavaScript
• [x] Defer non-critical CSS requests
• [x] Defer third-party assets
• [x] Add fallback <noscript> tags for lazy-loaded objects
• [x] Add custom HTML while browser is rendering the page (splashscreen)
• [x] Attribute to ignore optimizing the element
• [x] Attribute to ignore lazyloading the element
• [x] Optimize AMP document
• [x] Minify HTML output

Support my activities

Keep up-to-date with new releases:
https://wordpress.org/plugins/shins-pageload-magic/

Donate via Paypal
Become a sponsor
Become a stargazer
Report an issue

Released under the GNU General Public License v2 license.
https://code.shin.company/defer-wordpress/blob/master/LICENSE

Copyright (c) 2024 Mai Nhut Tan <[email protected]>

core web vitals Defer JS lazyload loading-lazy optimization lazy load pagespeed