AWS Shield Advanced now uses the health of your applications to improve responsiveness and accuracy in attack detection and mitigation. You can now define a health check in Amazon Route 53 and then associate it with a resource that is protected by Shield Advanced through the console or API. You can apply health-based detection to all resource types that Shield Advanced supports: Elastic IP, Elastic Load Balancing (ELB), Amazon CloudFront, AWS Global Accelerator, or Amazon Route 53.