This is an object-based storage solution from Amazon that allows users to make files available over the internet. Managed centrally by Amazon, the service offers a highly scalable, fast and cost-effective data storage infrastructure. In addition to the central AWS user interface, S3 also offers a dedicated API for managing the service and the files, which can be addressed by any system.
S3 will be the central file store for our project, it will be configured as a private storage location and only allow connections from a specific CloudFront distribution. In this case, we are using a private S3 bucket in the AWS region eu-central-1 (Frankfurt).