Amazon CloudFront is a content delivery network (CDN) that accelerates content delivery by caching data at edge locations worldwide. However, because these edge locations are distributed across different geographic regions, the cost of data transfer varies significantly. Understanding CloudFront pricing models and price classes is essential, especially for AWS certification exams.

CloudFront Pricing Overview

The cost of using CloudFront depends on:

• Geographic region: Different regions have different pricing per GB of data transferred.
• Data transfer volume: The more data you transfer, the lower the cost per GB.
• Edge location usage: Some edge locations, especially in regions like India, cost more than those in the U.S. or Canada.

Example Pricing:

• United States, Canada, Mexico:
  • First 10 TB → $0.085/GB
  • Large transfers (>5 PB) → $0.02/GB
• India:
  • First 10 TB → $0.17/GB (twice the U.S. rate)

As data transfer increases, cost per GB decreases, making CloudFront more cost-effective at scale.

CloudFront Price Classes

AWS provides three price classes to control costs by limiting which edge locations are used for content delivery.

1️⃣ Price Class All

• Includes all edge locations worldwide
• Best performance due to maximum availability
• Most expensive as it includes high-cost regions like India

2️⃣ Price Class 200

• Excludes the most expensive regions