From the RFC: Relying Parties MUST NOT use CAA records as part of certificate validation.
A normal user is in roughly the same situation with and without CAA; is a particular certificate trustworthy? Only trusted root CAs and CRLs can answer the question. CAA is only cryptographically secure with DNSSEC, and transparency reports give at least as much auditability.
A normal user is in roughly the same situation with and without CAA; is a particular certificate trustworthy? Only trusted root CAs and CRLs can answer the question. CAA is only cryptographically secure with DNSSEC, and transparency reports give at least as much auditability.