AWS Shield Advanced now supports Health Based Detection
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.
Source:: Amazon AWS