Azure is a cloud computing service for building, testing, deploying, and managing applications and services through Microsoft-managed data centers.
Facebook pixel is an analytics tool that allows you to measure the effectiveness of your advertising.
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.