Apache is a free and open-source cross-platform web server software.
Clicky is web an analytics tool which helps you to get real-time analysis including spy view.
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.
JSDelivr is a free public CDN for open-source projects. It can serve web files directly from the npm registry and GitHub repositories without any configuration.