S3 endpoint not shown in the Route 53 alias dropdown list

•  S3
  • Create a S3 bucket with a DNS-compliant name; say, amazon.nlabs.tw
  • Make the bucket a static web site and public accessible
• Route 53
  • Create a zone, amazon.nlabs.tw
  • Create an A record with proprietary Route 53 alias
    • Leave the A record name blank
    • Set alias option to Yes and choose the S3 endpoint from the dropdown list
• Remarks
  • the S3 bucket name should be DNS-compliant
  • the S3 bucket name should match the Route 53 zone name
  • if S3 bucket name doesn’t match Route 53 zone name, the S3 endpoint would not be shown in the dropdown list automatically.