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CloudFront caches aggressively. A Cache-Control: max-age=31536000 (one year) is common for static assets. But what happens when a critical security patch drops? You need to purge the cache.
But many studios skip this. Performance > paranoia. And because patches are large and public by nature, they accept the risk. You could serve game assets directly from an S3 bucket with s3-website enabled. But S3 has no edge caching. Every request hits the bucket’s region (e.g., us-east-1 ). A player in Australia experiences 200ms latency. CloudFront drops that to 20ms. games cloudfront.net
patch.gamestudio.com CNAME games.cloudfront.net. Now players download from patch.gamestudio.com , but traffic routes to AWS. The studio retains branding and can swap CDN providers (CloudFront → Fastly → Akamai) without updating game clients. CloudFront caches aggressively