Apache is a free and open-source cross-platform web server software.

Select2 is a jQuery based replacement for select boxes. It supports searching, remote data sets, and infinite scrolling of results.

cdnjs is a free distributed JS library delivery service.

MDBootstrap (Material Design for Bootstrap) is a complete UI package that can be integrated with other frameworks such as Angular, React, Vue, etc. It is used to design a fully responsive and mobile-friendly layout using various components, plugins, animation.

Google Analytics is a free web analytics service that tracks and reports website traffic.

Cloudflare is a web-infrastructure and website-security company, providing content-delivery-network services, DDoS mitigation, Internet security, and distributed domain-name-server services.

Prism is an extensible syntax highlighter.

Bootstrap is a free and open-source CSS framework directed at responsive, mobile-first front-end web development. It contains CSS and JavaScript-based design templates for typography, forms, buttons, navigation, and other interface components.

Google Hosted Libraries is a stable, reliable, high-speed, globally available content distribution network for the most popular, open-source JavaScript libraries.

jQuery is a JavaScript library which is a free, open-source software designed to simplify HTML DOM tree traversal and manipulation, as well as event handling, CSS animation, and Ajax.