Domain Certificate Validation

Hello, When did you start the certificate validation request? Please note that your new certificate might continue to display a status of Pending validation for up to 30 minutes.

Reference: https://docs.aws.amazon.com/acm/latest/userguide/dns-validation.html

Hello, the DNS validation should be turned to success immeidately as soon as you correctly input the CNAME name and CNAME value in the corresponding Route 53 record name. Please try again and double confirm value of CNAME referred to Domains block in the ACM certificates.