AWS Certificate Manager Domain Validation Issue

Hi,

My validation has timed out at first because of a DNS issue on our DNS provider. We have now resolved this issue from the DNS provider and has provided the right CNAME entry and the entry is reflecting the right record. After retrying the validation however it seems that your side is not properly validating our DNS entry.

doing a dig command on the hostname:

<removed hostname for confidentiality> 600 IN CNAME _f67d857427b98ed6519fc8ebcfe92987.bxmgrlxjqk.acm-validations.aws.

;; AUTHORITY SECTION: bxmgrlxjqk.acm-validations.aws. 900 IN SOA ns-1722.awsdns-23.co.uk. awsdns-hostmaster.amazon.com. 1 7200 900 1209600 86400

It shows the exact CNAME record that is on the AWS console. I compared the value from my dig and the value on the AWS ACM side with "diff" command and they're exactly the same and identical. I tried checking from different DNS checkers like https://mxtoolbox.com/DNSLookup.aspx and https://dnschecker.org/all-dns-records-of-domain.php and they do show the exact CNAME record.

It's been 3 days now since we are trying to validate the SSL certificate, I tried deleting the certificate from ACM, waited for a few hours to try and clear the cache (if any) from your side, then reentered the ACM certificate records again but to no chance. Can you help check on your side please? Thanks.