| Security & Bot Defense | |
| HSTS HTTP header forcing browsers to use secure HTTPS connections | 141.3M sites |
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| Apache HTTP Server Long-established open-source web server software | 82.9M sites |
| Front-End Frameworks & UI Toolkits | |
| Bootstrap Popular CSS and component framework for responsive layouts | 45.6M sites |
| MDBootstrap Material Design UI kit built on the Bootstrap framework. | 71.7K sites |
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| DataTables jQuery plugin adding sorting, paging, and search to tables | 1M sites |
| Popper JavaScript positioning engine for tooltips and popovers | 5.6M sites |
| SweetAlert2 JavaScript library for styled, responsive popup alerts | 1.5M sites |
| jQuery Widely used JavaScript library simplifying DOM manipulation, events, and AJAX | 118.1M sites |
| jQuery UI jQuery-based library of UI widgets and interactions | 8.1M sites |
| Fonts & Icons | |
| Font Awesome Popular icon library and toolkit for scalable web icons | 73.5M sites |
| other | |
| Chmp-Asn | 8 sites |
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