Amazon S3 or Amazon Simple Storage Service is a service offered by Amazon Web Services (AWS) that provides object storage through a web service interface.
Bootstrap is a free and open-source CSS framework directed at responsive, mobile-first front-end web development. It contains CSS and JavaScript-based design templates for typography, forms, buttons, navigation, and other interface components.
Facebook pixel is an analytics tool that allows you to measure the effectiveness of your advertising.
ipify is a service which provide public IP address API, IP geolocation API, VPN and Proxy detection API products.
Nginx is a web server that can also be used as a reverse proxy, load balancer, mail proxy and HTTP cache.