By default, AWS Shield Standard protects AWS Global Accelerator resources against the most common infrastructure layer DDoS attacks. With AWS Shield Advanced, you get protection against more sophisticated and larger DDoS attacks, by enhanced detection and mitigation tuned to your architecture behind the Accelerator. With AWS Shield Advanced you also get near-real-time attack visibility, 24×7 access to the AWS DDoS Response Team (DRT) for escalations, and economic protections against DDoS-related usage spikes in your protected resources.
Prices for AWS Shield Advanced for AWS Global Accelerator are similar to those for Elastic Load Balancing and AWS Elastic IP. You pay a monthly subscription fee of $3,000 per organization, plus data transfer out fees starting at $0.050 per GB. For most current details, please refer to https://aws.amazon.com/shield/pricing/. AWS Shield Standard continues to provide automatic DDoS protections against common infrastructure layer attacks to all AWS customers, at no additional charge.
You can learn more about AWS Shield by visiting https://aws.amazon.com/shield.