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TeleTrusT project

IT Security Association Germany (TeleTrusT) Logo

Coverage of the directory service

The following table shows the coverage of externally accessible certificates via the connected directory services. A list of reachable domains can be found here.

Directory service

Proportion of externally accessible certificates









Single certificates of various public authorities, federal states  and service providers of the federation


Agency for Digitisation, High-Speed Internet and Surveying

Federal Academy for Security Policy (BAKS)

Federal Commissioner for Data Protection and Freedom of Information (BFDI)

Federal Press Office (BPA)

Federal Constitutional Court (BVerfG)

German Pension Insurance Association (BfA)

KDVZ Citkomm

Federal Agency for Technical Assistance (THW)

Service and single external email addresses

Deutsche Bank

Externally accessible certificates are at the planning stage

E.ON Business Services

Fully accessible

Fiducia & GAD ITExternally accessible certificates are at the planning stage
Net at WorkFully accessible

Austrian Supervisory Authority

All certificates with the domain

SwissSignMember certificates fully accessible
TeleTrusTFully accessible

Siemens AG

Fully accessible

Unfiy (formerly Siemens
Enterprise Communications)

Fully accessible

ZertificonFully accessible