Arya Dhiratara

ThinkWeb

A lightweight yet powerful image, iframe, and video optimization plugin. Lazy load, preload, and more. No jquery dependency.
<h3>Features</h3>
<ul>
<li>Lazy Load – Lazy loading images, iframes, and videos, using the high performant <code>lazysizes.js</code>. No jquery dependency.</li>
<li>Preload Featured Images – Automatically preloading featured image from common page/post (homepage, pages except homepage, single post, and woocommerce single product pages).</li>
<li>Use CDN for Images – HTML rewrite if you want to serve images from your favorite CDN.</li>
<li>Add Missing Image Dimensions – Add missing width and height attributes from your images.</li>
</ul>
New (since 1.1.1)
<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>
New (since 1.0.7)
<ul>
<li>We changed the lazy load library from lozad.js to lazysizes.js.</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>
New (since 1.0.3)
<ul>
<li>Lazy load CSS Background Images – 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>Noscript Fallback – Extra option to use <noscript> fallback for lazy images and iframes.</li>
<li>Add Loading Eager – Extra option to Automatically add <code>loading=eager</code> to the lazy load excluded list.</li>
</ul>
This plugin only adds 1 extra row in your database. And it will self delete upon uninstalation.
<h3>About Lazysizes</h3>
Lazysizes is highly performant lazy load library, written by Alexander Farkas in pure JS with no dependencies.
Taken from lazysize’s github description: 
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.
<h3>Optimize More!</h3>
Need to optimize more? Try our <a href="https://thinkweb.dev/service/speed-optimization/" rel="nofollow ugc">WordPress Speed Optimization’s Service</a>.
<h3>Other USEFUL PLUGINS TO OPTIMIZE YOUR SITE’S SPEED:</h3>
<ul>
<li>
<a href="https://wordpress.org/plugins/optimize-more/" rel="ugc">Optimize More!</a> – 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.
</li>
<li>
<a href="https://wordpress.org/plugins/lazyload-preload-and-more/" rel="ugc">Lazyload, Preload, and more!</a> – 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. 
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):
<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>
<a href="https://wordpress.org/plugins/shop-extra/" rel="ugc">Shop Extra</a> – 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.
</li>
<li>
<a href="https://wordpress.org/plugins/animate-on-scroll/" rel="ugc">Animate on Scroll</a> – 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.
</li>
</ul>

Optimize More! – Images

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

Freemius

Passionate Brains

AEH Speed Optimization boosts site speed with caching, minification, lazy loading, and image optimization to improve performance and SEO.
<h4>Advantages</h4>
1) Serves static assets with an efficient cache policy helps to leverage browser caching.
2) Reduces page loading time of website.
3) Improves user experience as page loads very quickly than before.
4) Decreases total data-size of page.
5) Larger band of predefined file types are covered so it will increase bandwidth of files which can have expiry headers.
6) You can have different expire time for cache base on type of resources.
7) Merge multiple CSS files into one helps reducing http requests and improving page load speed.
8) Async loading of processed CSS files.
9) Minify CSS files which reduce data transfer requirement hence increase page load speed.
10) Inline small footer CSS files which helps to improve page speed.
11) Escape admin users from minification to avoid page builders related issues.
12) Lazy loading support for images, iframes, and videos.
13) Widgets and shortcodes can also be lazy loaded.
14) Lazy loading fully supports responsive images for better performance across devices.
15) Custom placeholder images can be used during lazy loading.
16) Exclude critical elements from lazy loading to ensure essential visuals load immediately.
<h4>Pro Features</h4>
1) Ability to add expires headers to External Resources
2) Adding new file types for adding expires headers
3) Refresh cache periodically
4) Unset Entity Tags
5) HTTP(Gzip) compression
6) Prevent Specific files from caching
7) Removing version info from files
8) Inline google fonts helps to load page faster and reduce external http requests.
9) Merge multiple JS files into one helps reducing http requests and improving page load speed.
10) Minify JS files which reduce data transfer requirement hence increase page load speed.
11) Plugin offers Defer scripts option to speed up rendering process.
12) HTML minification helps to reduce overall data size of page.
13) Automatically convert images to optimized formats like WebP or AVIF for faster delivery without manual effort.
14) Smartly resize and serve images based on screen size and device type to minimize bandwidth and boost speed.
15) Support next-gen formats like WebP and AVIF for superior compression, smaller files, and sharper visuals.
16) Track image optimization stats, savings, and performance improvements directly from your WordPress dashboard.
17) Automatically deliver the perfect image size for every device, ensuring crisp visuals and smooth performance.
18) Optimize images without visible loss in clarity—maintaining pixel perfection while reducing file size.
19) Works out-of-the-box with WordPress and major themes or plugins, no setup hassles or coding required.
<h4>Documentation</h4>
For Plugin documentation, please refer our <a href="https://www.addexpiresheaders.com/documentation" rel="follow nofollow ugc">plugin website</a>.
<h4>Requirements</h4>
1) Make sure that the “mod_expires” module is enabled on your website hosting server.
2) It is necessary to have read/write permission of .htaccess file to plugin. If not then update file permissions accordingly.
3) check status page of plugin for more info.
<h3>Usage</h3>
To use this plugin do the following:
1) Firstly activate Plugin.
2) Go to plugin settings page.
3) Check Files types you want to have expires headers and also add respective expires days for mime type using input box and make sure you enable respective mime type, for which group of files you want to add expires headers.
4) Once you hit “submit” button all options you selected in settings page saved database of website and accordingly .htaccess file will updated and add expires headers for respective selected files.
5) For Minification check respective settings at Minification Tab of plugin settings page.
6) For Lazy Loading check respective settings at Lazy Loading Tab of plugin settings page.

AEH Speed Optimization: Browser Cache, Optimized Minify, Lazy Loading & Image Optimization

AEH Speed Optimization boosts site speed with caching, minification, lazy loading, and image optimization to improve performance and SEO.

Optimize More! – Images vs AEH Speed Optimization: Browser Cache, Optimized Minify, Lazy Loading & Image Optimization