How does Route 53 integrate with CloudFront?

Amazon Route 53 and CloudFront are commonly used together to deliver high-performance, low-latency, and secure content to users globally. The integration leverages Route 53's DNS management and CloudFront's content delivery network (CDN) capabilities to create scalable and efficient web applications.

Integration Overview :
  1. Domain Name Resolution:

    • Route 53 serves as the DNS service that maps user-friendly domain names (e.g., www.example.com) to CloudFront distribution domain names (e.g., d1234abc.cloudfront.net).
    • This ensures users can access CloudFront content via custom domain names.
  2. Traffic Routing:

    • Route 53 directs DNS queries to the CloudFront distribution, which then delivers content from the nearest edge location to the user.
    • If the requested content is not cached at the edge location, CloudFront retrieves it from the origin server (e.g., S3 bucket, EC2 instance, or custom origin).
  3. Alias Records:

    • Route 53 supports Alias Records, which allow you to map a domain name (e.g., example.com) to a CloudFront distribution without incurring additional DNS lookup charges.
    • Alias records automatically handle AWS infrastructure changes and updates.
Steps to Integrate Route 53 with CloudFront :
  1. Create a CloudFront Distribution:

    • Configure a CloudFront distribution and set the origin as your backend service (e.g., S3 bucket or web server).
    • Obtain the CloudFront distribution domain name (e.g., d1234abc.cloudfront.net).
  2. Set Up a Hosted Zone in Route 53:

    • In Route 53, create a hosted zone for your domain (e.g., example.com) if one doesn't already exist.
  3. Add Alias Records:

    • In the hosted zone, create an Alias Record for your domain or subdomain:
      • Name: The domain or subdomain (e.g., www.example.com).
      • Type: A or AAAA.
      • Alias Target: Choose the CloudFront distribution from the AWS resource list.
  4. Configure SSL/TLS (Optional but Recommended):

    • Use Amazon Certificate Manager (ACM) to issue an SSL/TLS certificate for your custom domain.
    • Attach the certificate to your CloudFront distribution to enable HTTPS for secure content delivery.
  5. Test the Integration:

    • Use a browser or DNS testing tool to verify that your domain resolves correctly to the CloudFront distribution.