Before deep diving into running a docker container into an AWS ECS, let start with basic key concepts:
Cloud
Search Engine Optimization (SEO)
SEO stands for "Search Engine Optimization". It is the process of maximizing the number of visitors and affecting online visibility of a particular web page or website on a search engine's natural, organic, or earned results. The website which is ranked higher on the search results page of search engine will receive high volume traffic of visitors.