What is AWS S3?

Amazon Web Service S3 is basically a simple storage service that stores all the images, files, data etc. Just like folders and files in Windows it uses Buckets (folders) and keys (files). Bucket names are common throughout web, hence it must be very unique.

Using S3 you can also launch static web pages by configuring the bucket for the same. Once configured you can render basic HTML pages using the static URL.