When serving files from s3, if you care about availability it's worth using your own subdomain rather than pointing directly at S3. You can't have a subdomain p

When serving files from s3, if you care about availability it's worth using your own subdomain rather than pointing directly at S3. You can't have a subdomain point to different buckets in different regions directly, but you can point your subdomain to a CDN and have your CDN's origin point to different buckets in different regions.