Google Tag Manager is a tag management system (TMS) that allows you to quickly and easily update measurement codes and related code fragments collectively known as tags on your website or mobile app.
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.
Moodle is a free and open-source Learning Management System (LMS) written in PHP and distributed under the GNU General Public License.
Nginx is a web server that can also be used as a reverse proxy, load balancer, mail proxy and HTTP cache.
RequireJS is a JavaScript library and file loader which manages the dependencies between JavaScript files and in modular programming.
SiteGround is a web hosting service.
YouTube is a video sharing service where users can create their own profile, upload videos, watch, like and comment on other videos.