CDN

AWS CloudFront Website Examples

AWS CloudFront is Amazon Web Services' globally distributed content delivery network, widely used by enterprises, SaaS platforms, and high-traffic web applications to accelerate static and dynamic content delivery through AWS's edge location infrastructure. The AIWebsiteDetector detection engine identifies CloudFront-powered sites through two distinct HTTP response headers that Amazon injects at the edge layer, providing reliable, low-ambiguity signals that persist regardless of how the origin server is configured. These headers are characteristic to CloudFront's request routing and caching architecture, making them consistently present across the broad range of deployments — from simple S3-hosted static sites to complex multi-origin distributions fronting EC2 or Lambda backends. Because CloudFront operates as a transparent proxy layer rather than modifying page markup or injecting client-side scripts, header-based detection is the technically appropriate method and yields high-confidence results without reliance on DOM patterns or JavaScript fingerprinting. CloudFront is a paid AWS service billed on data transfer and request volume, though it integrates tightly with other AWS services and is commonly provisioned alongside Route 53, S3, and API Gateway — making its presence a strong indicator of a broader AWS-hosted infrastructure stack.