1Alias vs CNAME
You cannot create a CNAME for a root domain (zone apex) like 'example.com' due to DNS protocol limitations. AWS created Alias records to solve this exact problem, allowing you to map the apex to an ALB or CloudFront distribution.
Learn about DNS Architecture in this comprehensive Cloud Computing tutorial. Advanced routing.
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You cannot create a CNAME for a root domain (zone apex) like 'example.com' due to DNS protocol limitations. AWS created Alias records to solve this exact problem, allowing you to map the apex to an ALB or CloudFront distribution.

Pascual Vila
Frontend Instructor // Code Syllabus
AWS DNS Service.
// Route 53 contextAWS specific apex mapping.
// Alias Record contextRDS Multi-AZ vs. Read Replicas
RDS (Relational Database Service) Fundamentals
S3 Security (Bucket Policies & Encryption)
S3 Storage Classes (Standard, Intelligent-Tiering, Glacier)
AMIs (Amazon Machine Images)
API Gateway (REST & HTTP APIs)