LiteSpeed is a high-scalability web server.

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.

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.

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

YouTube is a video sharing service where users can create their own profile, upload videos, watch, like and comment on other videos.

Twitter is a 'microblogging' system that allows you to send and receive short posts called tweets.

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