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.
cdnjs is a free distributed JS library delivery service.
HTTP Strict Transport Security (HSTS) informs browsers that the site should only be accessed using HTTPS.
Internet Information Services (IIS) is an extensible web server software created by Microsoft for use with the Windows NT family.
Imperva is a cyber security software and services company for networking, data, and application security.
ASP.NET is an open-source, server-side web-application framework designed for web development to produce dynamic web pages.
Open Graph is a protocol that is used to integrate any web page into the social graph.
Twitter is a 'microblogging' system that allows you to send and receive short posts called tweets.