A Certification Authority Authorization (CAA) record is a DNS record type, it is used to declare which Certificate Authorities (CA) are allowed to issue certificates for your domain. This means that no other CA can issue SSL certificates for your website except the ones you choose. If no CAA record is present, any CA is allowed to issue a certificate for the domain.

You can easily generate your domain's CAA record by our Free Online CAA Record Generator. Just enter your domain, select the CA and the certificate type, then the CAA Generator will do the rest for you.