Private CA
Control your private trust
Build, operate, and scale private PKI across hybrid environments with full control, visibility, and compliance.
Hybrid flexibility
Deploy internal PKI across cloud, on-prem, or air-gapped environments.
Centralized control
Manage root and intermediate CAs with full visibility, policy, and governance.
Proven scale
Issue and manage billions of certificates with speed and reliability.
Private CA is no longer "set and forget"
Certificate volume, compliance demands, and hybrid infrastructure require a private CA that's visible, governed, and automated.
PKI sprawl is real
Internal certificates grow fast across teams, tools, and environments, creating blind spots and inconsistent policy.
Legacy CAs slow you down
Older tooling limits automation, governance, and visibility as lifecycles and requirements tighten.
Hybrid is the new default
Workloads shift across cloud, on-prem, and regulated environments, and private CA must move with them.
Explore Private CA
Modernize internal PKI with flexible deployment, centralized control, and scalable certificate issuance across users, devices, and workloads.
Deploy anywhere
- Run PKI in DigiCert cloud, on-prem, or hybrid environments
- Support air-gapped and high-security deployments
- Deploy via Kubernetes or Linux-based environments
Issue at scale
- Quickly deploy root and intermediate CAs
- Support high-volume certificate issuance for any environment
- Customize certificate templates for users, devices, and workloads
Integrate easily
- Use REST APIs for DevOps and automation workflows
- Integrate with existing PKI, tools, and infrastructure
- Combine with Trust Lifecycle Manager for full lifecycle control
Secure by design
- Protect keys with FIPS 140-2 Level 3 HSMs
- Enforce role-based access and full audit logging
- Support modern cryptography and plan for post-quantum readiness
Built for modern internal PKI
Support infrastructure, identity, and cloud-native workloads with one governed private CA.
Secure hybrid infrastructure
Issue and automate certificates across servers, applications, and network services with consistent internal PKI policy.
Manage users and devices
Authenticate users and devices with certificate-based access for Wi-Fi, VPN, and enterprise endpoints.
Secure cloud-native workloads
Provision certificates for containers, APIs, and services with automation that keeps pace with dynamic environments.
Reduce complexity. Strengthen control. Scale trust.
Lower cost
Eliminate infrastructure, maintenance, and operational overhead.
Improve agility
Adapt quickly to new environments, threats, and cryptographic changes.
Scale easily
Support high-volume issuance across users, devices, and workloads.
Stay compliant
Meet audit, regulatory, and data sovereignty requirements.
Why enterprises trust DigiCert for internal PKI
96%
Fewer outages
$7.9M
In operational savings
312%
Return on investment
Download the Forrester TEI study
Source: The Total Economic Impact™ study is commissioned by DigiCert and delivered by Forrester Consulting. Results are based on a composite organization derived from customer interviews. Forrester does not endorse DigiCert or its offerings.
Modernizing internal PKI at scale
Zscaler replaced fragmented internal PKI with a standards-based foundation, enabling secure trust across a global, cloud-native environment.
"Our internal PKI had served us well, but at global scale, it was no longer viable. DigiCert gave us a standardized, scalable foundation we could trust."
Lidor Pergament, Director of Product Management
Zscaler
