cdnjs is a free distributed JS library delivery service.
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.
Mailchimp is a marketing automation platform and email marketing service.
Nginx is a web server that can also be used as a reverse proxy, load balancer, mail proxy and HTTP cache.
Open Graph is a protocol that is used to integrate any web page into the social graph.
Statamic is an open-source and self-hosted content management system based on the PHP programming language.
Swup is a versatile and expandable library for implementing page transitions on websites that use server-side rendering.
Ubuntu is a free and open-source operating system on Linux for the enterprise server, desktop, cloud, and IoT.