Route 53

  • Authoritative DNS Service & Domain Registrar
    • Authoritative: customers can update the DNS records

CNAME & Alias

  • CNAME
    • hostname -> hostname
    • Can not be used for root domain (Zone Apex)
  • Alias
    • hostname -> AWS resource hostname (amazonaws.com)
    • free
    • Native health check
    • Records Targets: ELB, CloudFront Distributions, API Gateway, Elastic Beanstalk environments, S3 Websites, VPC Interface Endpoints, Global Accelerator accelerators, Route 53 records in the same hosted zone
      • Not include EC2 DNS name

Health Checks

  • Health Checks are only for public resources
    • Public endpoint
    • Other health checks (calculated health checks)
    • CloudWatch Alarms

Traffic Flow

  • A visual tool to create complex route policies
  • Use this tool to create Geoproximity Policy
    • Set bias