Nginx is a web server that can also be used as a reverse proxy, load balancer, mail proxy and HTTP cache.

Cloudflare is a web-infrastructure and website-security company, providing content-delivery-network services, DDoS mitigation, Internet security, and distributed domain-name-server services.

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.

Popper is a positioning engine, its purpose is to calculate the position of an element to make it possible to position it near a given reference element.

cdnjs is a free distributed JS library delivery service.

Query Migrate is a javascript library that allows you to preserve the compatibility of your jQuery code developed for versions of jQuery older than 1.9.

Apache is a free and open-source cross-platform web server software.

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.

Bootstrap is a free and open-source CSS framework directed at responsive, mobile-first front-end web development. It contains CSS and JavaScript-based design templates for typography, forms, buttons, navigation, and other interface components.

Modernizr is a JavaScript library that detects the features available in a user's browser.

Google AdSense is a program run by Google through which website publishers serve advertisements that are targeted to the site content and audience.

Google Analytics is a free web analytics service that tracks and reports website traffic.