cdnjs is a free distributed JS library delivery service.
Flickity is a JavaScript slider library, built by David DeSandro of Metafizzy fame.
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.
Nginx is a web server that can also be used as a reverse proxy, load balancer, mail proxy and HTTP cache.
Plyr is a simple, lightweight, accessible and customizable HTML5, YouTube and Vimeo media player that supports modern browsers.
Priority Hints exposes a mechanism for developers to signal a relative priority for browsers to consider when fetching resources.
SiteGround is a web hosting service.
WordPress is a free and open-source content management system written in PHP and paired with a MySQL or MariaDB database. Features include a plugin architecture and a template system.