A performant lazy loader (defer.js)

A faster website! (aka defer.js)

€0

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

Version

2.9.0
Last updated

2024.04.05
Active installations

400
WordPress Version

4.0
Tested up to

6.5.2
PHP Version

5.6
Rating

5.00
Total ratings

44
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Description

⚡️ 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/

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

Copyright (c) 2024 Mai Nhut Tan <shin@shin.company>