The linked post uses CloudFront as an example, which is commonly used simply as a CDN in front of static content on S3. This allows you to take that model and a

The linked post uses CloudFront as an example, which is commonly used simply as a CDN in front of static content on S3. This allows you to take that model and add some dynamic content to it. I just recently used this model to host a JS widget used on external websites, now I could for example add some basic logic to disallow certain domains (by checking referrer headers) from using the widget.