| Ecommerce & Shopping Carts | |
| WooCommerce Open-source ecommerce plugin turning WordPress into an online store | 10.9M sites |
| CMS & Website Builders | |
| WordPress Open-source CMS powering websites, blogs, and content management | 75.7M sites |
| WordPress Themes & Plugins | |
| Blocksy Fast, customizable multipurpose WordPress theme | 797.5K sites |
| Blocksy Companion Companion plugin extending the Blocksy WordPress theme. | 279.2K sites |
| Gutenberg Block-based content editor project for WordPress | 2.4M sites |
| Kadence WP Blocks WordPress plugin adding custom blocks to the editor | 615.6K sites |
| WordPress Block Editor Block-based content editor built into modern WordPress | 15.7M sites |
| Forms & Lead Capture | |
| Formidable Form WordPress plugin for building advanced forms and views | 511.8K sites |
| Web Servers & Operating Systems | |
| HTTP/3 Modern web transport protocol over QUIC for faster connections | 149.4M sites |
| LiteSpeed High-performance web server known for speed and caching | 39.6M sites |
| Languages & Back-End Frameworks | |
| PHP Server-side scripting language powering a large share of websites | 114.2M sites |
| JavaScript Libraries & Widgets | |
| Lightbox JavaScript script displaying images in an overlay popup | 7.6M sites |
| jQuery Widely used JavaScript library simplifying DOM manipulation, events, and AJAX | 114.7M sites |
| jQuery Migrate Compatibility shim restoring deprecated jQuery APIs for older code | 53M sites |
| jQuery UI jQuery-based library of UI widgets and interactions | 7.4M sites |
| parallax.js JavaScript library creating parallax scrolling background effects | 5.9M sites |
| Databases & Caching | |
| MySQL Popular open-source relational database used by many web applications | 77.9M sites |
| Performance & Optimization | |
| LiteSpeed Cache WordPress caching and optimization plugin for LiteSpeed servers | 11.1M sites |
| SEO & Content Discovery | |
| Open Graph Metadata protocol controlling how page links preview on social platforms | 151.8M sites |
| RSS Web feed format syndicating site content for readers and aggregators | 71.1M sites |
| Fonts & Icons | |
| Google Font API Google service delivering free web fonts to websites | 105.7M sites |
| other | |
| ACME/Let's Encrypt Free TLS certificates issued automatically over the ACME protocol | 11.7M sites |
| Hostixo Web hosting provider based in Turkey | 2.6K sites |
| Litespeed Cache | |
| MailBaby SMTP relay and outbound email delivery service | 521K sites |
| Litespeed | 3.8M sites |
| Code Snippets Design & Themes | 1.1M sites |
| Wp Toolkit | 595.4K sites |
| Kb Mailerlite | 382.9K sites |
| Kb Fluentcrm | 382.6K sites |
| Kbp | 381.9K sites |
| Kb Lottieanimation | 379.7K sites |
| Kb Image Picker | 370.9K sites |
| Kb Design Library | 367.6K sites |
| Kb Getresponse | 366.6K sites |
| Frm Admin | 278.8K sites |
| Instant Images – One-click Image Uploads from Unsplash, Openverse, Pixabay, Pexels, and Giphy Other | 134.4K sites |
| Kb Mailchimp | 117.4K sites |
| Kb Sendinblue | 117.2K sites |
| Kbpp | 117.1K sites |
| Kbp Dynamic | 117.1K sites |
| Kb Activecampaign | 115.7K sites |
| Kb Convertkit | 113.7K sites |
| Kb Custom Svg | 107.1K sites |
| Smart Slider 3 Content & Media | 73.6K sites |
| Greenshift | 48.7K sites |
| Mbb | 27.8K sites |
| Fluent Booking – The Ultimate Appointments Scheduling, Events Booking, Events Calendar Solution Productivity & Operations | 12K sites |
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