cf.tls_client_auth.cert_issuer_dn
cf.tls_client_auth.cert_issuer_dn String  The Distinguished Name (DN) of the Certificate Authority (CA) that issued the certificate included in the request.
This field is only filled in if the request includes a client certificate for mTLS authentication.
Example value:
"CN=Access Testing CA,OU=TX,O=Access Testing,L=Austin,ST=Texas,C=US" Categories: 
    - Request
 - mTLS