HTTP Strict Transport Security (HSTS) informs browsers that the site should only be accessed using HTTPS.
JivoChat is a live chat solution for websites offering customizable web and mobile chat widgets.
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.
Yii is an open-source, object-oriented, component-based MVC PHP web application framework.