AddThis is a social bookmarking service that can be integrated into a website with the use of a web widget.
Adobe Flash is a multimedia software platform used for production of animations, rich web applications and embedded web browser video players.
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.
OpenResty is a web platform based on nginx which can run Lua scripts using its LuaJIT engine.