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.

FluxPress

Uzair

Easy Optimizer is a free, all-in-one WordPress speed optimization plugin that can take the place of the 3–5 separate speed plugins most sites run today. One cache plugin. One dashboard. No premium upsells for core features. Prefer to keep your current cache plugin? You can also turn off the modules that overlap and use just the tools you want (see the FAQ).
Every toggle maps to a specific Google Lighthouse recommendation — enable it, save, and your Core Web Vitals (LCP, CLS, INP) improve immediately. Features you don’t enable never touch your page load.
<h4>Core Features</h4>
<ul>
<li>Full Page Caching: Achieve sub-millisecond TTFB with static HTML generation and separate mobile/desktop caches. Includes automatic sitemap-based preloading.</li>
<li>Remove Unused CSS: Automatically strips unnecessary styles, generating a slim, per-page-type stylesheet to eliminate render-blocking resources.</li>
<li>Delay & Defer JavaScript: Improve INP and reduce total blocking time by delaying script execution until user interaction, or deferring them natively.</li>
<li>Smart Lazy Loading: Defers offscreen images, iframes, videos, and background images. Automatically adds missing width/height attributes to fix layout shifts.</li>
<li>Automatic LCP Preload: Detects and preloads your Largest Contentful Paint image dynamically for instant visual loading.</li>
<li>Prefetch Pages: Pre-fetches links as users hover over them, making your site feel like an instant single-page application.</li>
<li>Font Optimization: Injects font-display: swap automatically to ensure text remains visible during webfont loads.</li>
<li>Bloat Removal: 15 one-click toggles to safely remove unused WordPress core scripts and features.</li>
<li>Database Cleanup & Optimization: Schedule automatic cleanups of revisions, auto-drafts, trashed posts, spam, and transients — each with a pre-cleanup snapshot so you can restore safely. The built-in Autoload Health auditor finds the heaviest options loaded on every page and lets you switch off the ones you don’t need, directly resolving the WordPress Site Health warning “Autoloaded options could affect performance.”</li>
<li>Heartbeat & Cron Manager: Take control of server resources by limiting WordPress Heartbeat frequency and throttling WP-Cron execution directly from the dashboard (no <code>wp-config.php</code> edits required). View, run, or delete scheduled cron events.</li>
<li>Cloudflare Integration: Automatically purge your Cloudflare edge cache (tag-based or full zone) whenever the page cache clears. Test your API connection instantly without saving credentials first.</li>
<li>Hosting Integrations: Auto-detects your environment to automatically purge server-level cache on managed hosts including Kinsta, WP Engine, SiteGround, Cloudways, GridPane, RunCloud, SpinupWP, Rocket.net, and WordPress.com.</li>
<li>Accessibility & SEO Fixes: Automatically resolves common Lighthouse accessibility warnings in real-time, such as missing form labels, ARIA tags, and un-crawlable links.</li>
<li>PageSpeed Speed Test: Run a Google PageSpeed test right from your dashboard and see your score with and without Easy Optimizer, side by side, for both mobile and desktop. Includes Core Web Vitals (LCP, CLS, INP). Works out of the box with no setup, or add your own free Google API key for unlimited tests.</li>
<li>Backend Analyzer: Find what slows your site down behind the scenes. Profile any page (or your admin area) on demand to see which plugins, themes, and database queries take the most time. Basically, find slow plugins and themes. Nothing runs on your real visitors, so there is no added overhead.</li>
</ul>
<h4>PageSpeed Insights & Lighthouse Recommendations Addressed</h4>
<ul>
<li>Eliminate render-blocking resources</li>
<li>Reduce unused CSS</li>
<li>Reduce unused JavaScript</li>
<li>Minimize main-thread work</li>
<li>Defer offscreen images</li>
<li>Serve images in next-gen formats</li>
<li>Properly size images</li>
<li>Image elements do not have explicit width and height</li>
<li>Preload Largest Contentful Paint image</li>
<li>Ensure text remains visible during webfont load</li>
<li>Serve static assets with an efficient cache policy</li>
<li>Enable text compression</li>
<li>Form elements do not have associated labels</li>
<li>Links do not have a discernible name</li>
<li>Buttons do not have an accessible name</li>
<li>[user-scalable=”no”] in viewport or [maximum-scale] < 5 .</li>
<li>Frame or iframe elements do not have a title — accessibility fix</li>
<li>ARIA progressbar elements do not have accessible names.</li>
<li>Some elements have a [tabindex] value greater than 0.</li>
<li>Links are not crawlable.</li>
<li>Image elements do not have [alt] attributes.</li>
</ul>
<h4>Works With Your Setup</h4>
<ul>
<li>WordPress & PHP: WP 6.4+ and PHP 7.4+</li>
<li>Web Servers: Apache, Nginx, LiteSpeed, OpenLiteSpeed</li>
<li>WooCommerce: Fully compatible. Cart, checkout, and my-account pages are automatically excluded from caching and optimization to protect the purchase flow.</li>
<li>Page Builders: Elementor, Beaver Builder, Divi, Gutenberg, Bricks, Oxygen, Breakdance.</li>
</ul>
<h3>External Services</h3>
Easy Optimizer can connect to the external services below. Each is optional and used only for the feature noted.
<ul>
<li>ShortPixel CDN — when Image CDN is on, your image URLs are rewritten to ShortPixel for WebP/AVIF delivery. Only image URLs are sent. <a href="https://shortpixel.com/tos" rel="nofollow ugc">Terms</a> · <a href="https://shortpixel.com/privacy" rel="nofollow ugc">Privacy</a></li>
<li>Cloudflare API — when Cloudflare is connected, your edge cache is purged (by URL or full zone) as the page cache clears. Only the URLs to purge and your zone ID are sent. <a href="https://www.cloudflare.com/website-terms/" rel="nofollow ugc">Terms</a> · <a href="https://www.cloudflare.com/privacypolicy/" rel="nofollow ugc">Privacy</a></li>
<li>Google PageSpeed Insights — when you run a speed test with your own API key, your site’s public home URL is sent to Google. <a href="https://developers.google.com/terms" rel="nofollow ugc">Terms</a> · <a href="https://policies.google.com/privacy" rel="nofollow ugc">Privacy</a></li>
<li>FluxPress PageSpeed proxy — the default speed-test path; your site registers once, then its public home URL is tested via Google so no API key is needed. <a href="https://fluxpress.io/privacy" rel="nofollow ugc">Terms & Privacy</a></li>
<li><a href="https://fluxpress.io/" rel="nofollow ugc">FluxPress</a> usage analytics — opt-in, off by default; sends anonymous data (plugin/WordPress/PHP versions, theme, locale, host, multisite/WooCommerce flags, site URL). No email, IP, or content. <a href="https://fluxpress.io/privacy" rel="nofollow ugc">Terms & Privacy</a></li>
</ul>
<h3>Privacy</h3>
Easy Optimizer’s usage analytics are opt-in and disabled by default. When enabled, it sends the data listed under External Services over an encrypted connection. It never collects your email address, IP address, user data, or site content.

Easy Optimizer – Speed, Cache, Unused CSS, Delay JS, Lazy Load, LCP & Core Web Vitals

All-in-one speed optimizer: page cache, unused CSS removal, delay JS, lazy load, preload LCP, accessibility & SEO fixes. Boost Core Web Vitals free.

Optimize More! – Images vs Easy Optimizer – Speed, Cache, Unused CSS, Delay JS, Lazy Load, LCP & Core Web Vitals