Amazon Route 53

1. Core concepts

   Hosted zones, records, domain registration, health checks and DNS routing.

2. Registering domains

   Registering, transferring and managing domain names.

3. Configuring DNS

   Public and private hosted zones and record sets.

4. Routing policies

   Simple, weighted, latency, failover, geolocation, geoproximity and multivalue routing.

5. Routing to AWS resources

   Alias records for CloudFront, ELB, S3 and API Gateway.

6. Health checks and DNS failover

   Health checks, failover configuration and monitoring status.

7. Resolver

   Inbound and outbound endpoints and rules for hybrid DNS.

8. Resolver DNS Firewall

   Filtering outbound DNS queries from VPCs.

9. Traffic Flow

   Visual policies for complex routing configurations.

10. Monitoring

    CloudWatch metrics and query logging.

11. Quotas

    Hosted zone, record and health check limits.

Each section links to the official page. Titles and summaries by Extra Credit; the docs belong to their authors.