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
Was this helpful?
- Resources
- API
- New to Cloudflare?
- Products
- Sponsorships
- Open Source
- Support
- Help Center
- System Status
- Compliance
- GDPR
- Company
- cloudflare.com
- Our team
- Careers
- 2025 Cloudflare, Inc.
- Privacy Policy
- Terms of Use
- Report Security Issues
- Trademark