我在Chrome中收到ERR_NAME_RESOLUTION_FAILED响应，在Firefox中收到“找不到网站”错误，但无法弄清楚哪里出了问题或如何确定故障点。我可以使用任何故障排除工具/技术来了解需要解决的问题吗？设置...

S3 Bucket | mydomain.com | Block All Public access:OFF | Static Website Hosting:ON -> index.html
S3 Bucket | www.mydomain.com | Block All Public access:OFF | Redirect Requests:ON -> mydomain.com

Route 53 Hosted Zone | mydomain.com
Record Set | Name:mydomain.com | Type:SOA | Comment:I think this was put here by default.
Record Set | Name:mydomain.com | Type:NS | Comment:This was given by default.
Record Set | Name:mydomain.com | Type:A-IPv4 | Target:s3-website.us-east-2.amazonaws.com.
Record Set | Name:www.mydomain.com | Type:A-IPv4 | Target:s3-website.us-east-2.amazonaws.com.