LiteSpeed is a high-scalability web server.

jQuery CDN is a way to include jQuery in your website without actually downloading and keeping it your website's folder.

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.

Moment.js is a free and open-source JavaScript library that removes the need to use the native JavaScript Date object directly.

OWL Carousel is an enabled jQuery plugin that lets you create responsive carousel sliders.

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

Popper is a positioning engine, its purpose is to calculate the position of an element to make it possible to position it near a given reference element.

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.

Varnish is a reverse caching proxy.

Nginx is a web server that can also be used as a reverse proxy, load balancer, mail proxy and HTTP cache.