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.
cdnjs is a free distributed JS library delivery service.
HTTP Strict Transport Security (HSTS) informs browsers that the site should only be accessed using HTTPS.
Kong is an open-source API gateway and platform that acts as middleware between compute clients and the API-centric applications.
Ruby on Rails is a server-side web application framework written in Ruby under the MIT License.