DigiCert Private Root CA

Establish the trust anchor your private PKI depends on with DigiCert Private Root CA. This software-services offering is designed for enterprise environments that need a controlled root authority to support internal certificate hierarchies, policy enforcement, and long-term trust governance. A private root CA sits at the top of your certificate chain, so its role is foundational. It defines the trust boundary for subordinate issuance and helps security teams maintain separation between internal identity infrastructure and public certificate ecosystems. That matters in regulated environments, segmented networks, and organizations that need precise control over who can issue what, and under which policy. DigiCert Private Root CA is a fit for teams that treat PKI as core infrastructure rather than a utility. It supports disciplined certificate architecture, reduces dependence on ad hoc trust decisions, and gives you a stable base for internal authentication at scale.