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.
Amazon Web Services (AWS) is a comprehensive cloud services platform offering compute power, database storage, content delivery and other functionality.
Cloudinary is an end-to-end image- and video-management solution for websites and mobile apps, covering everything from image and video uploads, storage, manipulations, optimisations to delivery.
Datadog is a SaaS-based monitoring and analytics platform for large-scale applications and infrastructure.
Google Analytics is a free web analytics service that tracks and reports website traffic.
Varnish is a reverse caching proxy.