| CMS & Website Builders | |
| WordPress Open-source CMS powering websites, blogs, and content management | 58.6M sites |
| WordPress Multisite WordPress feature running multiple sites from one installation | 1.1M sites |
| Web Analytics & Measurement | |
| Google Analytics Google platform measuring website traffic and visitor behavior | 49.9M sites |
| Google Tag Manager Tag management system deploying analytics and marketing tags without code | 53.8M sites |
| Web Servers & Operating Systems | |
| Apache HTTP Server Long-established open-source web server software | 72.1M sites |
| Languages & Back-End Frameworks | |
| PHP Server-side scripting language powering a large share of websites | 93.5M sites |
| JavaScript Libraries & Widgets | |
| Smart Slider 3 WordPress plugin building responsive sliders and galleries | 511K sites |
| imagesLoaded JavaScript utility detecting when page images have finished loading | 8.4M sites |
| jQuery Widely used JavaScript library simplifying DOM manipulation, events, and AJAX | 93.8M sites |
| jQuery Migrate Compatibility shim restoring deprecated jQuery APIs for older code | 40.4M sites |
| Databases & Caching | |
| MySQL Popular open-source relational database used by many web applications | 60.6M sites |
| Performance & Optimization | |
| Priority Hints Browser resource hints signaling fetch priority for faster loading | 65.2M sites |
| SEO & Content Discovery | |
| RSS Web feed format syndicating site content for readers and aggregators | 55.3M sites |
| Site Kit Official WordPress plugin connecting Google search and analytics tools | 7.7M sites |
| Fonts & Icons | |
| Adobe Fonts Adobe subscription service delivering web fonts to sites | 3.9M sites |
| Google Font API Google service delivering free web fonts to websites | 94.4M sites |
| Typekit Adobe web font service, now branded Adobe Fonts | 3.6M sites |
| other | |
| Auberge | 2K sites |
| Site Kit by Google – Analytics, Search Console, AdSense, Speed Analytics | 5.6M sites |
| Pum | 747.6K sites |
| Fl Controls | 352.6K sites |
| WP Table Builder – Drag & Drop Table Builder Other | 44.7K sites |
| Wptb | 15.2K sites |
| Accordion Slider Other | 2.3K sites |
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