ThinkSmall

<p>This minimalist lazyloader makes your video pages slimmer and faster. SlimFast replaces heavy YouTube iframes by their thumbnail. <a href="https://thinksmall.me" rel="nofollow ugc">View a demo.</a></p>
<h4>How to use it?</h4>
<p>Paste the url of the YouTube video in a page (for example <code>https://youtu.be/neV3EPgvZ3g</code>). WordPress will convert it into a video iframe. SlimFast will take it from there and replace the iframe by the video thumbnail and a button to play the video. This will also work for all pre-existing videos embedded this way.</p>
<h4>What is lazyloading and why is it important to use it on YouTube videos?</h4>
<p>Lazyloading is a technique to make your pages load faster, by only loading required elements when the visitor requests them. The page speed is a key element in Google’s algorithm to rank pages.</p>
<p>Embedding a YouTube iframe will load a lot of scripts for every single video and will slow down your page, especially if your visitor doesn’t have a top connection. Hence the need for lazyloaders!</p>
<p>2 types of lazyloaders exist:</p>
<ul>
<li>
<p>Those who load the video iframe when the visitor scrolls down to the point where he sees the video on his screen.</p>
</li>
<li>
<p>Those who load the iframe after the visitor clicks the Play button. SlimFast is one of those. We believe it is the best approach to let your visitor decide if he wants to click or not, and only load the iframe if he clicks.</p>
</li>
</ul>
<p>See a comparison of performances with/without SlimFast in the “Screenshots” section.</p>
<h4>Why is SlimFast better than other YouTube lazyloading plugins?</h4>
<ol>
<li>
<p>Because they require 2 click to play a video: 1 to load the iframe, 1 to play it! This is actually the reason why we built this plugin: SlimFast loads & play videos with 1 single click, even on mobile! Think about your User Experience, it’s crucial. Your visitors are frustrated if they have to click twice on that Play button to launch a video!</p>
</li>
<li>
<p>Because it doesn’t use any custom shortcode. WordPress already recognises YouTube videos when you paste their urls. SlimFast takes it from there. Why bother with shortcodes? Think long term! Shortcodes are painful if you decide to drop a plugin. If you’re unhappy with SlimFast, just deactivate it and all your YouTube videos will be back to their default iframes.</p>
</li>
<li>
<p>Because we’ve made it as light as possible! The plugin only adds 3 small scripts (YouTube iframe API, 1 custom javascript and 1 css) to your pages containing YouTube videos, for an extra weight of 4KB only. And nothing will be loaded if your pages don’t have YouTube videos! This is why you’ll only see 1 custom setting. We decided to sacrifice all settings (such as playlists support and video titles) that would add unnecessary weight. How many options do you really need on your WordPress plugins?</p>
</li>
</ol>
<h4>Is it possible not to use SlimFast on specific videos?</h4>
<p>Of course! Juste paste the iframe code provided by YouTube (for example <code><iframe width= »560″ height= »315″ src= »https://www.youtube.com/embed/neV3EPgvZ3g » frameborder= »0″ allow= »accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture » allowfullscreen></iframe></code>) and SlimFast will leave it intact. Do it if you feel like certain videos deserve features we’ve cut.</p>
<h4>What is in the code?</h4>
<ul>
<li>Just 3 little scripts (YouTube iframe API, 1 custom javascript and 1 css).</li>
<li>These will be loaded on your pages containing YouTube videos for an extra weight of 4KB only. Nothing will be loaded on pages that don’t host YouTube videos.</li>
<li>No JavaScript library such as jQuery is used to ensure a maximum compatibility with all themes.</li>
</ul>
<h3>Demo</h3>
<p><a href="https://thinksmall.me" rel="nofollow ugc">View a demo.</a></p>


SlimFast – YouTube Lazyloader

This minimalist lazyloader makes your video pages slimmer and faster. SlimFast replaces heavy YouTube iframes by their thumbnail. View a demo.

Arya Dhiratara

ThinkWeb

<p>A lightweight yet powerful image, iframe, and video optimization plugin. Lazy load, preload, and more. No jquery dependency.</p>
<h3>Features</h3>
<ul>
<li><strong>Lazy Load</strong> – Lazy loading images, iframes, and videos, using the high performant <code>lazysizes.js</code>. No jquery dependency.</li>
<li><strong>Preload Featured Images</strong> – Automatically preloading featured image from common page/post (homepage, pages except homepage, single post, and woocommerce single product pages).</li>
<li><strong>Use CDN for Images</strong> – HTML rewrite if you want to serve images from your favorite CDN.</li>
<li><strong>Add Missing Image Dimensions</strong> – Add missing width and height attributes from your images.</li>
</ul>
<p><strong>New</strong> (since 1.1.1)</p>
<ul>
<li>Add <code>no-lazy</code> and <code>skip-lazy</code> class as default exclude class for lazyloading images.</li>
<li>Enable <code>loading eager</code> to also target <code>no-lazy</code> and <code>skip-lazy</code> class.</li>
<li>Automatically exclude featured image (add <code>no-lazy</code> class) from lazyloading if <code>Preload Featured Images</code> feature is enabled (useful to avoid <code>Largest Contentful Paint image was lazily loaded</code> warning in Google Pagespeed Insights ).</li>
<li>Add <code>webp</code> extension to CDN HTML rewrite regex.</li>
</ul>
<p><strong>New</strong> (since 1.0.7)</p>
<ul>
<li>We changed the lazy load library from lozad.js to <strong>lazysizes.js</strong>.</li>
<li>Add field to modify lazysize default configuration. Read the <a href="https://github.com/aFarkas/lazysizes/#js-api---options" rel="nofollow ugc">docs</a>.</li>
<li>Add fields to specify width and height fallback value if the Add Missing Image Dimensions feature failed to get the actual image dimension.</li>
</ul>
<p><strong>New</strong> (since 1.0.3)</p>
<ul>
<li><strong>Lazy load CSS Background Images</strong> – Load faster by lazy loading background images from the CSS <code>background-image</code> property.  Tested and works well on CSS background image from <code>GenerateBlocks</code>, <code>Elementor</code>, and <code>Oxygen Builder</code>.</li>
<li><strong>Noscript Fallback</strong> – Extra option to use <noscript> fallback for lazy images and iframes.</li>
<li><strong>Add Loading Eager</strong> – Extra option to Automatically add <code>loading=eager</code> to the lazy load excluded list.</li>
</ul>
<p>This plugin only adds 1 extra row in your database. And it will self delete upon uninstalation.</p>
<h3>About Lazysizes</h3>
<p>Lazysizes is highly performant lazy load library, written by Alexander Farkas in pure JS with no dependencies.</p>
<p><strong>Taken from lazysize’s github description</strong>:<br />
<em>High performance and SEO friendly lazy loader for images (responsive and normal), iframes and more, that detects any visibility changes triggered through user interaction, CSS or JavaScript without configuration.</em></p>
<h3>Optimize More!</h3>
<p>Need to optimize more? Try our <a href="https://thinkweb.dev/service/speed-optimization/" rel="nofollow ugc">WordPress Speed Optimization’s Service</a>.</p>
<h3>Other USEFUL PLUGINS TO OPTIMIZE YOUR SITE’S SPEED:</h3>
<ul>
<li>
<p><strong><a href="https://wordpress.org/plugins/optimize-more/" rel="ugc">Optimize More!</a></strong> – Selectively Optimize your CSS/JS Delivery: Load CSS Asynchronously, Delay CSS and JavaScripts until User Interaction, Preload Critical CSS and JavaScripts, and Remove Unused CSS and JavaScripts Files.</p>
</li>
<li>
<p><strong><a href="https://wordpress.org/plugins/lazyload-preload-and-more/" rel="ugc">Lazyload, Preload, and more!</a></strong> – A simplified version of this plugin. The plugin size is only around 14kb zipped. Without UI for settings, but you can customize the settings using filters.<br />
The default configuration is the best for optimizing images and other media files to speed up your site (just install and activate it and you’re good to go):</p>
<ul>
<li>lazyload your below the fold images/iframes/videos,</li>
<li>preload your featured images,</li>
<li>and add loading=”eager” to your featured image and all images that have <code>no-lazy</code> or <code>skip-lazy</code> class.</li>
</ul>
</li>
</ul>
<h3>Other USEFUL PLUGIN:</h3>
<ul>
<li>
<p><strong><a href="https://wordpress.org/plugins/shop-extra/" rel="ugc">Shop Extra</a></strong> – A lightweight plugin to optimize your WooCommerce & Business site: Floating WhatsApp Chat Widget (can be use without WooCommerce), WhatsApp Order Button for WooCommrece, Hide/Disable WooCommerce Elements, WooCommerce Strings Translations, and many more.</p>
</li>
<li>
<p><strong><a href="https://wordpress.org/plugins/animate-on-scroll/" rel="ugc">Animate on Scroll</a></strong> – Animate any Elements on scroll using the popular AOS JS library simply by adding class names. This plugin helps you integrate easily with AOS JS library to add any AOS animations to WordPress. Simply add the desired AOS animation to your element class name with “aos-” prefix and the plugin will add the corresponding aos attribute to the element tag.</p>
</li>
</ul>


Optimize More! – Images

A lightweight yet powerful image, iframe, and video optimization plugin. Lazy load, preload, and more. No jquery dependency.

SlimFast – YouTube Lazyloader vs Optimize More! – Images