A robust, reliable Online Certificate Status Protocol (OCSP) Validation Authority

Request a quote

Why use Ascertia’s

ADSS OCSP Server enables OCSP certification validation for multiple Certificate Authorities (CA) simultaneously in real-time.

Simple and sophisticated validation policies are supported and the ADSS OCSP Server enables. It provides a detailed historical record of transactions and comes with an easy-to-use OCSP request and response viewer. This functionality is essential for billing and troubleshooting within managed service infrastructures and enterprise systems.

Validate digital certificates quickly and securely with


Handles thousands

queries per second


Highly resilient

validation service to support demanding business continuity needs


Configure it

to fulfil all your certificate validation needs

ADSS OCSP Server Diagram

Key Benefits

  • Simultaneous multiple CA response

    – ADSS OCSP Server supports multiple CAs and validation policies. Additionally, it supports role-based operator access controls and provides high availability configurations. OCSP server certificates can be issued using a built-in CA and auto renewed.

  • Highly configurable validation policy engine

    – Options for whitelist checking is available using a full CA certificate table. Blacklist checking is also available using a Certificate Revocation List (CRL) table with instant revocation by the OCSP server admin.

  • Fully compliant

    – ADSS OCSP Server fully complies with international standards, including:

    • RFC 2560, RFC 6960 and RFC 5019
    • EU Qualified CA Trustworthy (CWA 14167-1)

    ADSS OCSP Server forms part of the ADSS PKI Server Common Criteria certification to EAL 4 against the National Information Assurance Partnership (NIAP) Protection Profile for Certification Authorities.

Watch Ascertia’s Success Stories

Ascertia’s products and solutions are used extensively by governments, leading financial institutions, global telcos and thousands of major corporations and SMEs around the world.

Visit our YouTube channel


How does ADSS OCSP Server work?

What standards are supported?

Is setup easy and straightforward?

What security features are available?

What is the load capacity for Ascertia’s ADSS OSCP Server?

What operating systems, databases and HSMs does ADSS OCSP Server support?