CloudFront vs Cloud CDN vs Azure CDN

AWS CloudFront, Google Cloud CDN, and Azure CDN are the content delivery network offerings from the three major cloud providers. All cache content at edge locations worldwide to reduce latency for end users, but they differ in edge network size, compute capabilities, and ecosystem integration.

Network Size and Performance

CloudFront

CloudFront has the largest edge network among the three, with 600+ points of presence across 90+ cities globally. It also offers Lambda@Edge (full Node.js/Python functions at the edge) and CloudFront Functions (lightweight JavaScript for URL rewrites, header manipulation, and A/B testing).

Cloud CDN

Google Cloud CDN leverages Google's private backbone network, which connects its 200+ edge locations. While it has fewer PoPs than CloudFront, Google's network backbone provides excellent performance. Cloud CDN works as a feature of Cloud HTTP(S) Load Balancing rather than a standalone service.

Azure CDN

Azure CDN offers multiple tiers: Microsoft CDN (built-in), Edgio (formerly Verizon), and Akamai. This gives you flexibility to choose the CDN backbone that best fits your needs. Azure Front Door combines CDN with global load balancing and WAF.

Edge Compute

CloudFront's edge compute capabilities are the strongest. Lambda@Edge runs full functions at edge locations, enabling dynamic content generation, authentication, and personalization at the edge. Cloud CDN and Azure CDN lack comparable edge compute — they rely on their respective cloud's compute services.

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