| CMS & Website Builders | |
| Squarespace Hosted website builder for sites, stores, and portfolios | 10.4M sites |
| WordPress Open-source CMS powering websites, blogs, and content management | 75.7M sites |
| Web Analytics & Measurement | |
| Google Analytics Google platform measuring website traffic and visitor behavior | 59.7M sites |
| Google Tag Manager Tag management system deploying analytics and marketing tags without code | 63.8M sites |
| Advertising & Conversion Tracking | |
| Facebook Pixel Meta tracking pixel measuring ad conversions and building audiences | 10.1M sites |
| Google Ads Google advertising platform for search and display campaigns | 7.2M sites |
| Google Ads Conversion Tracking Tag measuring conversions from Google advertising campaigns | 5M sites |
| Email & Push Marketing | |
| Klaviyo Email and SMS marketing platform for ecommerce brands | 1.7M sites |
| Sales & CRM | |
| HubSpot Marketing, CRM, and automation platform for businesses | 1.8M sites |
| Hosting & Cloud Providers | |
| Amazon S3 Amazon cloud object storage for files and static assets | 5.6M sites |
| Amazon Web Services Amazon cloud platform offering compute, storage, and hosting | 14.2M sites |
| Flywheel Managed WordPress hosting provider | 324.8K sites |
| Security & Bot Defense | |
| HSTS HTTP header forcing browsers to use secure HTTPS connections | 131.7M sites |
| Languages & Back-End Frameworks | |
| PHP Server-side scripting language powering a large share of websites | 114.2M sites |
| JavaScript Libraries & Widgets | |
| jQuery Widely used JavaScript library simplifying DOM manipulation, events, and AJAX | 114.7M 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 |
| Media, Maps & Social | |
| dc.js JavaScript library rendering interactive dimensional charts | 1.2M sites |
| SEO & Content Discovery | |
| Open Graph Metadata protocol controlling how page links preview on social platforms | 151.8M sites |
| Fonts & Icons | |
| Font Awesome Popular icon library and toolkit for scalable web icons | 71.2M sites |
| Google Font API Google service delivering free web fonts to websites | 105.7M sites |
| other | |
| Peek | 1.8K sites |
| Jetpack – WP Security, Backup, Speed, & Growth Security & Privacy | 5.1M sites |
| Post Duplicator Content & Media | 154.8K sites |
| Gf | 140.9K sites |
| MtphrPostDuplicatorSettings | 129.5K sites |
| Flywheel | 111.9K sites |
| V1 | 40.9K sites |
| Wicked Folders – Folder Organizer for Pages, Posts, and Custom Post Types Other | 23K sites |
| Github Updater | 12.1K sites |
| Git Updater | 10.8K sites |
| Modulation | 283 sites |
| Pre Cache | 283 sites |
| Comparison Themes | 283 sites |
| Urgency Message | 281 sites |
| Database Cleanup | 281 sites |
| Image Usage | 211 sites |
| Template Usage Design & Themes | 184 sites |
| Website Data | 177 sites |
| Ttbm | 115 sites |
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