Who is DigiCert,?
DigiCert is a digital trust and cybersecurity company that provides Public Key Infrastructure (PKI) and certificate management solutions for securing websites, software, users, devices, and enterprise systems.
- Enterprise TLS/SSL certificates and certificate lifecycle management for web servers and applications (web security).
- Managed PKI services for users, devices, workloads, and internal services (PKI-as-a-service).
- Code signing and document signing certificates for software publishers and organizations (software supply chain security).
- Certificate-based device identity and authentication for Internet of Things (IoT) and Operational technology (OT) environments (IoT security).
- Compliance-focused digital trust services for encryption, identity, and integrity across regulated industries (governance, risk, and compliance).
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More About DigiCert,
DigiCert operates in the digital trust and PKI (public key infrastructure) domain, providing certificate-based security for enterprises that run web-facing services, distributed applications, and Machine-to-Machine Communication (M2M). Its offerings are used to establish encrypted communication channels, authenticate entities, and maintain integrity for data in transit and at rest across heterogeneous IT environments.
In web security, DigiCert issues and manages TLS/SSL certificates (web security) that enable HTTPS for websites, APIs, and enterprise applications. These certificates support standard cryptographic protocols such as Transport Layer Security (TLS) and are used in typical load-balanced and multi-region architectures, including cloud-native deployments. Enterprises use DigiCert tools and platforms to automate certificate issuance, renewal, and revocation, integrating with web servers, application delivery controllers, containers, and service meshes to reduce manual certificate handling.
Through its PKI-as-a-service offerings (identity and access management), DigiCert provides managed PKI for user, device, and workload identities. This includes certificate authorities, registration workflows, and lifecycle management aligned with X.509, mutual TLS (mTLS), and related standards. Organizations use these services to support Virtual Private Network (VPN) access, Wi‑Fi authentication, endpoint identity, and internal service-to-service security, often connecting DigiCert platforms to directory services, mobile device management systems, and enterprise identity providers.
DigiCert also supplies code signing and document signing certificates (software supply chain security) to verify the origin and integrity of software binaries, installers, and sensitive documents. These certificates integrate into build pipelines, signing tools, and document workflows so that downstream users and systems can validate signatures with standard cryptographic verification mechanisms.
In IoT security (IoT identity and device management), DigiCert focuses on device identity, secure onboarding, and lifecycle management of certificates for embedded systems and connected equipment. Manufacturers and operators use these services to embed device credentials at production time, enable secure firmware updates, and maintain authenticated communication between devices, gateways, and cloud platforms using Certificate-Based Authentication (CBA) and TLS.
DigiCert positions its portfolio for enterprises, service providers, and institutions that require managed certificate services, policy enforcement, and compliance with industry frameworks such as CA/Browser Forum guidelines and sector-specific regulations. Within a directory or marketplace taxonomy, DigiCert aligns with categories including web security (TLS/SSL management), PKI and certificate lifecycle management, identity and access management, IoT security, and software supply chain security, with offerings that integrate into existing infrastructure, automation workflows, and governance processes.
Our description of DigiCert,. Updated December 2025.
