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 Tag Manager is a tag management system (TMS) that allows you to quickly and easily update measurement codes and related code fragments collectively known as tags on your website or mobile app.
Helix Ultimate a free template framework for Joomla.
HTTP Strict Transport Security (HSTS) informs browsers that the site should only be accessed using HTTPS.
Joomla is a free and open-source content management system for publishing web content.
Open Graph is a protocol that is used to integrate any web page into the social graph.