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

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.

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.

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

cdnjs is a free distributed JS library delivery service.

LottieFiles is an open-source animation file format that's tiny, high quality, interactive, and can be manipulated at runtime.

Unpkg is a content delivery network for everything on npm.

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.

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.

reCAPTCHA is a free service from Google that helps protect websites from spam and abuse.

Fly is a platform for running full stack apps and databases.