HTTP Strict Transport Security (HSTS) informs browsers that the site should only be accessed using HTTPS.
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.
Open Graph is a protocol that is used to integrate any web page into the social graph.
Tencent QQ also known as QQ, is an instant messaging software service and web portal developed by the Chinese tech giant Tencent.
Tengine is a web server which is based on the Nginx HTTP server.
Reveal CSS animation as you scroll down a page.