| CMS & Website Builders | |
| WordPress Open-source CMS powering websites, blogs, and content management | 75.7M sites |
| Marketing & Email Campaigns | |
| MailChimp for WordPress WordPress plugin connecting forms to Mailchimp lists | 688.9K sites |
| Hosting & Cloud Providers | |
| IONOS Web hosting and domain provider offering managed plans | 12.6M sites |
| Web Servers & Operating Systems | |
| Apache HTTP Server Long-established open-source web server software | 79.2M 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 |
| jQuery Migrate Compatibility shim restoring deprecated jQuery APIs for older code | 53M sites |
| Databases & Caching | |
| MySQL Popular open-source relational database used by many web applications | 77.9M sites |
| Media, Maps & Social | |
| Instagram Feed for WordPress WordPress plugin embedding Instagram feeds on a site | 1.9M sites |
| Smash Balloon Instagram Feed WordPress plugin displaying customizable Instagram feeds | 1.7M sites |
| SEO & Content Discovery | |
| RSS Web feed format syndicating site content for readers and aggregators | 71.1M 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 | |
| MailChimp | |
| Akismet Anti-spam: Spam Protection Social & Community | 4M sites |
| Monsterinsights | 1.4M sites |
| Mc4wp | 1M sites |
| Regenerate Thumbnails Other | 806.8K sites |
| Assistant Wizard | 44.9K sites |
| Collapsing Categories Content & Media | 1.4K sites |
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