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.
PHP is a general-purpose scripting language used for web development.
SWFObject is an open-source JavaScript library used to embed Adobe Flash content onto web pages.
YouTube is a video sharing service where users can create their own profile, upload videos, watch, like and comment on other videos.