ECharts is an open-source JavaScript visualisation library.
Google Hosted Libraries is a stable, reliable, high-speed, globally available content distribution network for the most popular, open-source JavaScript libraries.
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.
ThinkPHP is an open-source PHP framework with MVC structure developed and maintained by Shanghai Topthink Company.
Vue.js is an open-source model–view–viewmodel JavaScript framework for building user interfaces and single-page applications.