| CMS & Website Builders | |
| WordPress Open-source CMS powering websites, blogs, and content management | 75.7M sites |
| WordPress Themes & Plugins | |
| SiteOrigin Page Builder WordPress plugin building page layouts with widgets | 449.1K sites |
| SiteOrigin Vantage Multipurpose WordPress theme by SiteOrigin. | 80.6K sites |
| SiteOrigin Widgets Bundle WordPress plugin providing a collection of page widgets | 232.8K sites |
| Marketing & Email Campaigns | |
| MailOptin WordPress email opt-in and newsletter plugin. | 32.2K sites |
| Forms & Lead Capture | |
| Contact Form 7 Widely used WordPress plugin for building contact forms | 15.8M sites |
| Communications | |
| MailChannels Email delivery and relay service for outbound mail | 327.3K sites |
| CDN & Edge Delivery | |
| Bunny Content delivery network for fast asset delivery | 2.7M sites |
| CDN77 Content delivery network provider. | 109.5K sites |
| Google Hosted Libraries Google CDN serving popular open-source JavaScript libraries | 10.1M sites |
| Security & Bot Defense | |
| HSTS HTTP header forcing browsers to use secure HTTPS connections | 131.7M sites |
| Really Simple SSL & Security WordPress plugin enforcing HTTPS and hardening site security | 6.4M sites |
| hCaptcha CAPTCHA service blocking bots while preserving privacy | 1M sites |
| Languages & Back-End Frameworks | |
| PHP Server-side scripting language powering a large share of websites | 114.2M sites |
| Front-End Frameworks & UI Toolkits | |
| Onsen UI UI framework for building hybrid and mobile web apps | 3.1M sites |
| JavaScript Libraries & Widgets | |
| Animate.css CSS library providing ready-made animation effects | 7.6M sites |
| FitVids.JS JavaScript utility making embedded videos responsive | 5M sites |
| MetaSlider WordPress plugin creating responsive image sliders | 669.3K sites |
| Select2 JavaScript library enhancing select boxes with search and tags | 1.8M sites |
| Underscore.js JavaScript utility library offering functional programming helpers | 6.3M sites |
| jQuery Widely used JavaScript library simplifying DOM manipulation, events, and AJAX | 114.7M sites |
| pickadate.js Lightweight JavaScript date and time picker | 278.8K sites |
| Databases & Caching | |
| MySQL Popular open-source relational database used by many web applications | 77.9M sites |
| Performance & Optimization | |
| Priority Hints Browser resource hints signaling fetch priority for faster loading | 74.5M sites |
| WP Fastest Cache WordPress caching plugin improving page load speed | 1.1M sites |
| Media, Maps & Social | |
| DPlayer | 491 sites |
| SEO & Content Discovery | |
| Open Graph Metadata protocol controlling how page links preview on social platforms | 151.8M sites |
| Yoast SEO WordPress plugin managing on-page SEO, sitemaps, and metadata | 21.4M sites |
| Fonts & Icons | |
| Google Font API Google service delivering free web fonts to websites | 105.7M sites |
| Lucide Open-source icon library of clean, consistent SVG icons | 6M sites |
| Twitter Emoji (Twemoji) Open-source emoji library rendering consistent Twitter-style emoji graphics. | 66.1K sites |
| Yoast | 9.2M sites |
| Contact Form 7 Forms & Popups | 7.3M sites |
| Akismet Anti-spam: Spam Protection Social & Community | 4M sites |
| Metaslider | 362.4K sites |
| Really Simple Security | 310K sites |
| Sowb | 297.7K sites |
| Page Builder by SiteOrigin Design & Themes | 116K sites |
| Mwai Ui | 64.5K sites |
| Mwai | 63.9K sites |
| Beautiful Cookie Consent Banner Security & Privacy | 35.4K sites |
| Wp Review Slider Pro | 12.5K sites |
| Docket Cache – Object Cache Accelerator Performance & Speed | 11.8K sites |
| Wpcoder | 7.2K sites |
| Email Marketing by EmailOctopus Other | 2.9K sites |
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