Hummingbird Performance – Cache & Page Speed Optimization for Core Web Vitals | Critical CSS | Minify CSS | Defer CSS Javascript | CDN vs StaticDelivr

Hummingbird makes your website faster and optimizes site performance by adding new ways to boost Google PageSpeed Insights with fine-tuned controls over file compression, deferring CSS and JavaScript styles and scripts, minify for CSS and JS, Lazy Load integration, and world-class caching. Hummingbird is brought to you by the WordPress speed specialists that created Smush image optimization, now active on more than +1 million websites. Get the complete speed boost with Hummingbird and Smush. Enjoy top-tier performance and PageSpeed optimization from the start with Hummingbird Pro. Level up immediately with exclusive Pro features like Delay JavaScript Execution, Critical CSS Generation, Brotli file compression, and 119-point global asset CDN with unlimited bandwidth. Learn more about Pro. If PageSpeed Insights is making these speed recommendations Hummingbird can help: Enable text compression – Use gzip to make your site fly (Brotli Compression via CDN included with Pro). Preconnect to required origins – Use Hummingbird to establish earlier connections. Preload key requests – Prioritize resources based on order. Avoid enormous network payloads – Consider Lazy Load for comments or breaking up smaller posts. Use efficient cache – The Hummingbird Cache suite offers effective browser cache for caching any site. Fix your JavaScript execution time – Deliver smaller JS payloads, preload JS, and defer JS. Minify CSS – Strip unused code from your CSS. Minify JavaScript – Speed up the time it takes to parse your JS files. Eliminate render-blocking resources – Move critical CSS and JS inline and defer all non-critical JS/CSS. Delay JavaScript execution (Pro only) – Increase performance by delaying the loading of non-critical JS files and scripts until user interaction. Automatically generate Critical CSS (Pro only) – Substantially boost page speed and UX by prioritizing above-the-fold content. Defer unused CSS – Defer the loading of CSS not used for above-the-fold content. Lazy Load offscreen images (Smush free integration). Hummingbird scans your site and provides one-click fixes to speed up WordPress in a flash. You’ll get faster loading pages, higher search rankings (SERP) and PageSpeed scores, and happier visitors with Hummingbird’s WordPress speed optimization. Optimizing the speed of your site has never been easier! Features Available in Hummingbird Include: Scan and Fix – Get a scan of your site, find out what’s slowing it down, and use one-click performance improvements to make critical speed improvements. World-class caching – A full caching suite to load pages faster with full-page, Gravatar, and browser cache tool. Performance Reports – Pro tips for running your site at super speed. Asset Optimization – Combine, compress and position Javascript, CSS, and Google Font files for top performance. Safe Mode — Test Hummingbird settings without affecting your visitors’ experience, only logged-in admins see the optimized version. Better Rankings – Improve scores on Google PageSpeed Insights (SEO ranking factor), YSlow, Pingdom, and GTmetrix. Increase Your Conversion Rate – Don’t keep visitors waiting: faster sites convert better. GZIP Compression – Blazing-fast HTML, JavaScript, and stylesheet (CSS) transfer. Configs – Set your preferred performance settings, save them as config, and instantly upload to any other site. Font Optimization – Improve site speed, Core Web Vitals, and visual stability by preloading critical fonts and enabling fallbacks. Uptime Monitoring & Alerts – Get instant notifications if your site ever goes down. Scheduled Performance Reports – Stay on top of site speed with regular insights. Learn The Ropes With These Hands-On Hummingbird Tutorials How To Optimize WordPress For Speed With Hummingbird How To Optimize Elementor for Free Using Smush and Hummingbird How To Optimize WPBakery Sites Using Smush And Hummingbird Speed Up and Optimize Avada for Free Using Smush and Hummingbird Optimize Divi for Free Using Smush and Hummingbird Hummingbird Features to Speed Up WordPress Scan and One-Click Fix Hummingbird is a WordPress speed optimization plugin. It will scan your site, find files that are slowing it down, and provide tips and fixes for making your site run at top speed. Hummingbird even has one-click improvements like a full cache suite, one-click minify for styles and scripts, and deferring CSS and JS for quickly optimizing performance. What could be easier! World-Class Caching You’ll get a world-class caching suite, including full-page, browser, and Gravatar cache. Make your site load even faster with Hummingbird’s complete set of cache tools that give your visitors a faster browsing experience. Including full-page, browser and Gravatar caching. Asset Optimization Did you know that loading too many files in your site’s header can slow it down? Hummingbird now gives you granular control with separate Combine and Compress optimization modes, so you can fine tune your Asset Optimization like a pro. Reorder, defer, compress and exclude CSS and JavaScript files with one-click. Transfer Data at Top Speed With GZIP Hummingbird has GZIP powers to make sharing your site more efficient. Sending zipped files is faster and can save you money on hosting. And don’t worry about setup, send Hummingbird instructions with the click of a button and she’ll handle the rest. Built-in Cloudflare Integration Hummingbird can be used to control your Cloudflare browser cache and Automatic Platform Optimizations (APO) settings as well! Simply add your Cloudflare API key and configure away. Font Optimization Boost site speed, Core Web Vitals, and the visual stability of pages for users with Hummingbird’s one-click font optimization features: Preload Fonts, which instructs browsers to preload essential fonts, and Swap Web Fonts, which applies a temporary fallback font until the primary one loads. Fully Compatible With Smush Image Optimization You can complement Hummingbird’s WordPress speed optimization features with our award-winning sister-plugin Smush image optimization. Smush compresses your images, giving your site less to load – and thus a faster load time. Hummingbird + Smush integrate perfectly together, and are the perfect match to speed up WordPress. Compress, optimize (optimise), and fix PageSpeed performance with properly sized images, lazy load, next-gen WebP convert, image formatting, and more. Save time with Hummingbird Configs Configs allow you to save your preferred Hummingbird configuration settings and apply them to your other sites in a few clicks. You can create unlimited configs. Delay Javascript Resources (Pro Only) Boost site performance dramatically by delaying the loading of JS files and third-party scripts until direct user interaction (e.g. scroll or click). Enjoy faster loading pages, improve web vitals, and ace your PageSpeed scores. Activate in one click, includes user interaction timeout and the option to exclude critical files from being delayed. A paid WPMU DEV account (the developers of Hummingbird) is required to access this feature. You can check out our affordable plans here. Generate Critical CSS (Pro Only) Maximize site speed and user experience by prioritizing only the CSS that matters most. The Generate Critical CSS feature intelligently generates and embeds critical CSS in the head of each page, giving priority to above-the-fold content and significantly improving loading speed. Updates to your critical CSS are automated with every site design change, and you can enable/disable with a click. Faster Websites Rank Higher, Convert Better Every millisecond counts: your visitors expect an ever-faster website, with a page load time of under two seconds expected – and the norm. If visitors don’t get that on your site, they will leave. If you’re running a business website or eCommerce store, that means if your website does not load quickly, you will lose sales. Hummingbird is here to help you; it’s a one of a kind WordPress performance optimization plugin that can make your site run at superspeed, for free! You get our WordPress performance optimization suite, which includes minification and GZIP for small page sizes, full caching for faster loading, and integration with Cloudflare’s APO / browser cache, and our sister-plugin Smush image optimization. Hummingbird is built with ease-of-use in mind; it makes your WordPress site faster, but it’s also fast to set up. You can scan your site and implement recommended changes in one-click, getting a fast site in mere minutes. All the above is free and will speed up WordPress for you. If you need the very fastest WordPress site, you should get a WPMU DEV Membership. Our Membership gives you access to Hummingbird Pro – which features automated scanning, enhanced minify compression (with 2x the regular optimization), CDN hosted minification – alongside Smush Pro image optimization, all our premium WordPress plugins, and 24/7 WordPress support. It’s an incredible deal, and you can find out more here. What do People say About Hummingbird? ★★★★★ “Hummingbird is so easy to use. I thought it wouldn’t change my speed much because I already made improvements. I ran the scan, it gave me recommendations, I pushed a button to apply them and it made my site even faster!” – Camilo ★★★★★ “Hummingbird is getting smarter with each update. Today it’s become so good that it forced me to remove giant cache and optimization plugins like WP Super Cache and WP Sweep because now Hummingbird includes all those features – but in a more impressive way.” – swagatam1975 ★★★★★ “Hummingbird took me from 32 to 84 on Google page speed plus made my site 50% faster on GTmetrix!” – Nicolas ★★★★★ “I just built a real bloated sack of crap of a WP site, and after configuring Hummingbird and letting it do its thing, the site is actually fast — much faster than it has any right to be…I’m impressed.” – Cacarr A Note From Hummingbird Hey! This is Hummingbird, your trusted solution to speed up WordPress. I’m part of the WPMU DEV team, a superhero-suite of WordPress plugins, services, and support. Here are some of our other free plugins: Smush – Image Compression and Optimization Forminator – Form, Quiz, Poll and Survey Builder Hustle – Pop-ups, Slide-ins and Email Opt-ins And if you need ALL our Pro plugins AND 24/7 WordPress support, get WPMU DEV membership! My superhero friends run the WPMU DEV Blog, your source for the very best WordPress tutorials. If you need to be in the know about WordPress, check it out. Thanks for looking at Hummingbird, and I look forward to flying through your site to make it faster than ever. Enjoy, The Hummingbird About Us WPMU DEV is a premium supplier of quality WordPress plugins, services and support. Join us here: https://wpmudev.com/ Don’t forget to stay up to date on everything WordPress from the Internet’s number one resource: WPMU DEV Blog Hey, one more thing… we hope you enjoy our free offerings as much as we’ve loved making them for you!

StaticDelivr CDN is a lightweight and powerful plugin designed to improve your WordPress site’s performance. By rewriting theme, plugin, core file resource URLs, optimizing images, and proxying Google Fonts through the StaticDelivr CDN, the plugin ensures faster loading times, reduced server load, better privacy, and an improved user experience. StaticDelivr is a global content delivery network (CDN) that supports delivering assets from various platforms like npm, GitHub, and WordPress. By leveraging geographically distributed servers, StaticDelivr optimizes the delivery of your static assets such as CSS, JavaScript, images, and fonts. Key Features Smart Asset Detection: Automatically detects which themes and plugins are from wordpress.org and only serves those via CDN. Custom themes and plugins are served locally. No configuration needed! Failure Memory System: If a CDN resource fails to load, the plugin remembers and automatically serves it locally for 24 hours. No more repeated failures! Automatic URL Rewriting: Automatically rewrites URLs of enqueued styles, scripts, and core files for themes, plugins, and WordPress itself to use the StaticDelivr CDN. Image Optimization: Automatically optimizes images with compression and modern format conversion (WebP, AVIF). Turn 2MB images into 20KB without quality loss! Google Fonts Privacy Proxy: Serve Google Fonts without tracking (GDPR compliant). A drop-in replacement that strips all user-identifying data and tracking cookies. Automatic Fallback: If a CDN asset fails to load, the plugin automatically falls back to your origin server, ensuring your site never breaks. Localhost Detection: Automatically detects development environments and serves images locally when CDN cannot reach them. Child Theme Support: Intelligently handles child themes by checking parent theme availability on wordpress.org. Separate Controls: Enable or disable assets (CSS/JS), image optimization, and Google Fonts proxy independently. Quality & Format Settings: Customize image compression quality and output format. Verification Dashboard: See exactly which assets are served via CDN vs locally in the admin panel. Failure Statistics: View which resources have failed and are being served locally, with option to clear cache. Compatibility: Works seamlessly with all WordPress themes and plugins — both from wordpress.org and custom/premium sources. Improved Performance: Delivers assets from the StaticDelivr CDN for lightning-fast loading and enhanced user experience. Multi-CDN Support: Leverages multiple CDNs to ensure optimal availability and performance. Free and Open Source: Supports the open-source community by offering free access to a high-performance CDN. Use of Third-Party Service This plugin relies on the StaticDelivr CDN to deliver static assets, including WordPress themes, plugins, core files, optimized images, and Google Fonts. The CDN uses the public WordPress SVN repository to fetch theme/plugin files and serves them through a globally distributed network for faster performance and reduced bandwidth costs. Service Terms of Use: StaticDelivr Terms Privacy Policy: StaticDelivr Privacy Policy How It Works StaticDelivr CDN rewrites your WordPress asset URLs to deliver them through its high-performance network: Smart Asset Detection The plugin automatically verifies which themes and plugins exist on wordpress.org: WordPress.org Assets: Served via StaticDelivr CDN for maximum performance Custom/Premium Assets: Automatically detected and served from your server Child Themes: Parent theme is checked. If the parent is on wordpress.org, assets load via CDN This means the plugin “just works” with any combination of wordpress.org and custom themes/plugins! Failure Memory System (New in 1.7.0!) The plugin learns from CDN failures and automatically adapts: First failure: Fallback fires, failure is recorded Second failure: Resource is blocked from CDN for 24 hours Auto-recovery: After 24 hours, resources are retried automatically Manual reset: Clear the failure cache anytime from settings This ensures that problematic resources (Cloudflare-protected images, auth-gated content, etc.) are handled gracefully without repeated failures. Assets (CSS & JavaScript) Original URL: `https://example.com/wp-content/themes/theme-name/version/style.css` Rewritten CDN URL: `https://cdn.staticdelivr.com/wp/themes/theme-name/version/style.css` This process applies to themes, plugins, and core files: Themes: Original: `https://example.com/wp-content/themes/twentytwentythree/1.0/style.css` CDN: `https://cdn.staticdelivr.com/wp/themes/twentytwentythree/1.0/style.css` Plugins: Original: `https://example.com/wp-content/plugins/woocommerce/assets/js/frontend/woocommerce.min.js` CDN: `https://cdn.staticdelivr.com/wp/plugins/woocommerce/tags/9.3.3/assets/js/frontend/woocommerce.min.js` Core Files: Original: `https://example.com/wp-includes/js/jquery/jquery.min.js` CDN: `https://cdn.staticdelivr.com/wp/core/tags/6.9/wp-includes/js/jquery/jquery.min.js` Images Original: `https://example.com/wp-content/uploads/2024/01/photo.jpg` (2MB) Optimized CDN: `https://cdn.staticdelivr.com/img/images?url=https://example.com/wp-content/uploads/2024/01/photo.jpg&q=80&format=webp` (~20KB) Google Fonts Original CSS: `https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600&display=swap` Privacy Proxy: `https://cdn.staticdelivr.com/gfonts/css2?family=Inter:wght@400;500;600&display=swap` Original Font Files: `https://fonts.gstatic.com/s/inter/v20/example.woff2` Privacy Proxy: `https://cdn.staticdelivr.com/gstatic-fonts/s/inter/v20/example.woff2` This ensures faster delivery through StaticDelivr’s globally distributed network while protecting user privacy. Why Use StaticDelivr? Zero Configuration: Smart detection means it works out of the box with any theme/plugin combination. Self-Healing: Failure memory system automatically adapts to problematic resources. Global Distribution: StaticDelivr serves your assets from a globally distributed network, reducing latency and improving load times. Massive Bandwidth Savings: Offload heavy image delivery to StaticDelivr. Optimized images can be 10-100x smaller! Privacy-First Google Fonts: Serve Google Fonts without tracking cookies — GDPR compliant without additional cookie banners. Works with Custom Themes: Unlike other CDN plugins, StaticDelivr automatically detects custom themes/plugins and serves them locally. Browser Caching Benefits: As an open-source CDN used by many sites, assets served by StaticDelivr are likely already cached in users’ browsers. This enables faster load times when visiting multiple sites using StaticDelivr. Significant Bandwidth Savings: Reduces your site’s bandwidth usage and number of requests significantly by offloading asset delivery to StaticDelivr. Optimized Performance: Ensures assets are delivered quickly, no matter where your users are located. Comprehensive WordPress Support: Includes support for delivering core WordPress files (e.g., those in the `wp-includes` directory) to enhance site speed and reliability. Support for Popular Platforms: Easily integrates with npm, GitHub, WordPress, and Google Fonts. Minimal Configuration: Just enable the features you want and the plugin handles the rest. Development Friendly: Automatically detects localhost and development environments. Translations StaticDelivr CDN is available in the following languages: English (default) Spanish (Español) – es_ES, es_MX French (Français) – fr_FR German (Deutsch) – de_DE Italian (Italiano) – it_IT Portuguese Brazil (Português) – pt_BR Dutch (Nederlands) – nl_NL Japanese (日本語) – ja Chinese Simplified (简体中文) – zh_CN Chinese Traditional (繁體中文) – zh_TW Russian (Русский) – ru_RU Arabic (العربية) – ar Korean (한국어) – ko_KR Turkish (Türkçe) – tr_TR Polish (Polski) – pl_PL Ukrainian (Українська) – uk Czech (Čeština) – cs_CZ Hungarian (Magyar) – hu_HU Romanian (Română) – ro_RO Swedish (Svenska) – sv_SE Danish (Dansk) – da_DK Finnish (Suomi) – fi Hebrew (עברית) – he_IL Persian (فارسی) – fa_IR Hindi (हिन्दी) – hi Vietnamese (Tiếng Việt) – vi Thai (ไทย) – th Indonesian (Bahasa Indonesia) – id_ID Urdu (اردو) – ur Want to help translate StaticDelivr CDN into your language? Visit translate.wordpress.org to contribute! License This plugin is licensed under the GPLv2 or later. See License URI for details.