Microsoft Ajax Content Delivery Network hosts popular third party JavaScript libraries such as jQuery and enables you to easily add them to your web applications.
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.
Azure Edge Network is a global network infrastructure provided by Microsoft Azure. It is designed to deliver content, applications, and services to end-users with low latency and high performance. The Azure Edge Network consists of a combination of Azure Content Delivery Network (CDN), Azure Front Door, and Azure Traffic Manager.
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.