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» About this service

» TrustCenter list

» Public OCSP responder

» OCSP Market Overview

» Do you validate?

» How to use OCSP

» Validation Works!

» PKI Interoperability

» Bridge CA

» PKI linkage

» Local trustmanager

» read more
Services offered here

Largest market overview for OCSP/SCVP products on the web!
(including 46 products)

Most widespread OCSP Responder service all over the net!
(answering for 51 CAs)

Largest compilation of CAs, PKIs and Trustcenters in the Internet!
(comprising 135 entries)

Additionally this site features a very comprehensive introduction to online validation and an in depth documentation how to use OCSP within your applications, including some tools for download.

 
Services offered here
Our regular visitors may have noticed: We finally redesigned our website. There are also a lot of changes in the background. For example we are now working with a database containing the data for market overview and CA details in the background. This will allow us to offer you a lot new services: XML output, faster updates, multiple languages, etc.

If you want to help us to translate this service for another language, you are welcome to join in!

Do you like our new layout? Send us an E-Mail with your opinion!

 
Services offered here
OpenValidation.org provides a broad range of services around online validation:

» For the collectors: Exhaustive list of CAs and trustworthiness rating 
OpenValidation.org maintains a list of TrustCenters, PKIs and CAs. This list is maintained regurarily by our staff and by the operators of the different services. This list also includes valuable information about CPS, registration processes, CRL distribution points, LDAP access, etc. We have 135 CAs in our list!

» For interoperability: public OCSP responder for the most common CAs
One of the key features of this service is a public accessible OCSP responder. This responder answers for the most common CAs - including those integrated into Internet Explorer. Use our web-interface or your OCSP client to test it. We have current revocation information for 51 CAs! 
Make sure to visit our » PKI Interoperability section - it contains some interesting thoughts and some new insights about how to make PKI structures interoperable.

» For the shoppers: OCSP related market overview
OpenValidation.org also maintains a list of OCSP-related products. This includes OCSP-enabled applications, OCSP-plugins, OCSP-developer tools, PKI products comprising an OCSP-responder and standalone OCSP responder. The list is searchable and links to the different vendors. We have 46 OCSP products listed there!

» For the users: OCSP certificate validation HOWTO
You want to use OCSP? You need instructions? In this section you will find detailed documentation how to enable OCSP in Netscape, Mozilla, Internet Explorer, Outlook, etc. 

» For the cautious: Revocation check testing
You are not sure if you have revocation checking enabled? Test it. We send you a signed E-Mail with a revoked certificate and you can visit a website secured with a revoked SSL-certificate.

» For the developers: OCSP client test with a professional OCSP responder
OpenValidation.org also offers multiple configurations for developers to test their OCSP clients against a professional responder. This service ensures easy interoperability on a technical level.

» For the beginners: general PKI, OCSP & SCVP technical information
Furthermore we gathered a lot of technical information about OCSP, SCVP and PKI in general. It is our goal to provide an good introduction into online validation. Read it, bring yourself up to speed.

» For Microsoft users: OpenValidation supports ValidationWorks OCSP Client
SyTrust offers an OCSP Client for Microsoft CryptoAPI to enable the most common application to use online validation. This client is easy to install and simple to configure - mostly because it uses OpenValidation.org. » Download it now!

» For the advanced: ValidationWorks trustworthiness rating
Additionally to OCSP certificate validation, ValidationWorks supports trustworthiness information of verified certificates. ValidationWorks supports OpenValidation.org as default validation authority and thus provides a free plattform for realtime certificate status check to private users. 

All provided services of this site are completely free of charge and only for non commercial use! THIS FREE SERVICE IS OFFERED "AS IS" WITHOUT ANY WARRANTY, SERVICE OR SUPPORT GUARANTEED.

If a certain OCSP Responder, product, Certificate Authotity or other services is not listed or supported here please mail us.

The OpenValidation.org OCSP Responder service is based on SyTrust CertControl.