| CMS & Website Builders | |
| WordPress Open-source CMS powering websites, blogs, and content management | 56.5M sites |
| WordPress Themes & Plugins | |
| Divi Popular WordPress theme and visual page builder | 2.9M sites |
| Web Analytics & Measurement | |
| Google Analytics Google platform measuring website traffic and visitor behavior | 48.2M sites |
| Google Tag Manager Tag management system deploying analytics and marketing tags without code | 52.2M sites |
| Security & Bot Defense | |
| HSTS HTTP header forcing browsers to use secure HTTPS connections | 117.3M sites |
| Web Servers & Operating Systems | |
| Nginx High-performance web server and reverse proxy widely deployed | 136.8M sites |
| OpenResty Nginx-based web platform bundling Lua scripting support | 27.8M sites |
| Languages & Back-End Frameworks | |
| PHP Server-side scripting language powering a large share of websites | 89.1M sites |
| JavaScript Libraries & Widgets | |
| FitVids.JS JavaScript utility making embedded videos responsive | 3.8M sites |
| Magnific Popup Responsive lightbox and popup library for images and content | 6.2M sites |
| Slick Responsive carousel and slider library for web pages | 7.4M sites |
| jQuery Widely used JavaScript library simplifying DOM manipulation, events, and AJAX | 90.4M sites |
| jQuery Migrate Compatibility shim restoring deprecated jQuery APIs for older code | 39.3M sites |
| jQuery Mobile jQuery-based UI framework for touch-optimized mobile sites | 965.7K sites |
| Databases & Caching | |
| MySQL Popular open-source relational database used by many web applications | 58.4M sites |
| Redis In-memory data store used for caching and messaging | 593.5K sites |
| Redis Object Cache WordPress plugin caching database objects in Redis | 519.5K sites |
| Performance & Optimization | |
| Perfmatters WordPress plugin disabling scripts to speed up sites | 162K sites |
| Priority Hints Browser resource hints signaling fetch priority for faster loading | 59.8M sites |
| SEO & Content Discovery | |
| RSS Web feed format syndicating site content for readers and aggregators | 53.2M sites |
| Fonts & Icons | |
| Font Awesome Popular icon library and toolkit for scalable web icons | 56.1M sites |
| other | |
| Surry-Telephone-Memb-Corp | 295 sites |
| Wordfence Security – Firewall, Malware Scan, and Login Security Security & Privacy | 5.7M sites |
| Nps Survey | 4.5M sites |
| Wordfence Login Security Security & Privacy | 4.1M sites |
| Divi | 2.7M sites |
| Code Snippets Design & Themes | 1.7M sites |
| Pum | 744.5K sites |
| FluentSMTP – WP SMTP Plugin with Amazon SES, SendGrid, Mailgun, Postmark, Cloudflare, toSend, Gmail and Any SMTP Other | 713.7K sites |
| Fluent Forms – Customizable Contact Forms, Survey, Quiz, & Conversational Form Builder Forms & Popups | 671K sites |
| Popup Maker – Boost Sales, Conversions, Optins, Subscribers with the Ultimate WP Popup Builder Marketing & Email | 563.9K sites |
| Simple History – Track, Log, and Audit WordPress Changes Other | 418.2K sites |
| Cleantalk Antispam | 327.3K sites |
| Pretty Links | 140.2K sites |
| Presto Player Content & Media | 102.5K sites |
| FluentCRM – Email Newsletter, Automation, Email Marketing, Email Campaigns, Optins, Leads, and CRM Solution Marketing & Email | 75.3K sites |
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