Discuz! X is an internet forum software written in PHP and supports MySQL and PostgreSQL databases.
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.
Tencent QQ also known as QQ, is an instant messaging software service and web portal developed by the Chinese tech giant Tencent.