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CGI client certificate variables

Last update:
May 18, 2026
ColdFusion makes available the following client certificate data. These variables are available when running Microsoft IIS 4.0 or Netscape Enterprise under SSL if your web server is configured to accept client certificates.
CGI client certificate variable
Description
CERT_SUBJECT
Client-specific information provided by the web server. This data typically includes the client's name, e-mail address, and so on, for example:O = "VeriSign, Inc.", OU = VeriSign Trust Network, OU = "www.verisign.com/repository/RPA Incorp. by Ref.,LIAB.LTD(c)98", OU = Persona Not Validated, OU = Digital ID Class 1 - Microsoft, CN = Matthew Lund, E = mlund@.com
CERT_ISSUER
Information about the authority that provided the client certificate, for example:O = "VeriSign, Inc.", OU = VeriSign Trust Network, OU = "www.verisign.com/repository/RPA Incorp. By Ref.,LIAB.LTD(c)98", CN = VeriSign Class 1 CA Individual Subscriber-Persona Not Validated

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