cdnjs is a free distributed JS library delivery service.
Facebook pixel is an analytics tool that allows you to measure the effectiveness of your advertising.
JTL Shop is an ecommerce product created by JTL Software company.
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.