CAA Lookup Tool
View Which CA's Are Entitled to Issue Certificates For Your Domain(s)
View Which CA's Are Entitled to Issue Certificates For Your Domain(s). CAA (Certificate Authority Authorization) Lookup Tool enables organizations to easily check their DNS for CAA records, so you can determine which CA's are entitled to issue certificates and wildcard certificates for your list of domains. Click the domain name in the result set to popup the full CAA record.