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| WooCommerce Open-source ecommerce plugin turning WordPress into an online store | 10.9M sites |
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| WordPress Open-source CMS powering websites, blogs, and content management | 75.7M sites |
| Advertising & Conversion Tracking | |
| Adtriba Marketing attribution and media mix optimization platform. | 4.1K sites |
| Forms & Lead Capture | |
| Pollster | 3.4K sites |
| Business Email & Productivity | |
| Titan Business email hosting built for professionals and domains | 875.4K sites |
| Hosting & Cloud Providers | |
| Amazon Web Services Amazon cloud platform offering compute, storage, and hosting | 14.2M sites |
| IONOS Web hosting and domain provider offering managed plans | 12.6M sites |
| Plesk Web hosting control panel for managing servers and sites | 6.6M sites |
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| Cloudflare Global CDN and edge platform delivering and protecting websites | 161.4M sites |
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| Nginx High-performance web server and reverse proxy widely deployed | 153.2M sites |
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| PHP Server-side scripting language powering a large share of websites | 114.2M sites |
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| Bootstrap Popular CSS and component framework for responsive layouts | 43.5M sites |
| Onsen UI UI framework for building hybrid and mobile web apps | 3.1M sites |
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| 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 Mobile jQuery-based UI framework for touch-optimized mobile sites | 1.3M sites |
| Databases & Caching | |
| MySQL Popular open-source relational database used by many web applications | 77.9M sites |
| SEO & Content Discovery | |
| 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 |
| Blendee Marketing automation and site personalization platform from Italy | 3.5K sites |
| Exit Bee Exit-intent overlay and content recommendation tool for publishers | 1.6K sites |
| Giosg Live chat and conversational marketing tools for websites | 4.1K sites |
| Italiaonline Italian internet company offering web services and online advertising | 21.6K sites |
| Realytics | 954 sites |
| Twiago German advertising network for display and native ads | 4K sites |
| Jetpack – WP Security, Backup, Speed, & Growth Security & Privacy | 5.1M sites |
| Wc | 3.7M sites |
| Wccom Site | 3.7M sites |
| Wc Admin | 3.7M sites |
| Wc Analytics | 3.7M sites |
| Wc Telemetry | 3.5M sites |
| Wc Admin Email | 3M sites |
| Divi | 1.8M sites |
| Cky | 1.1M sites |
| WP Super Cache Performance & Speed | 1M sites |
| Cookieyes | 482.7K sites |
| Custom | 64.8K sites |
| Appwplp | 11.6K sites |
| GDPR Security & Privacy | 7.7K sites |
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