If you see a URL like d12345.cloudfront.net in your browser history or network logs, it is usually : What is Amazon CloudFront? - Amazon CloudFront
The prevalence of cloudfront.net is no accident. Amazon CloudFront is one of the most popular CDNs in the world, competing directly with Cloudflare, Akamai, and Fastly. Here is why developers choose it: cloudfront net
access files through the CDN URL and not directly from the storage source. Protocol Policies If you see a URL like d12345
Always use a custom domain (e.g., cdn.yourdomain.com ) with CloudFront. This gives you the performance benefits without exposing the cloudfront.net suffix—and it protects you if AWS ever changes their domain naming scheme. competing directly with Cloudflare