CA/Browser Forum

Welcome to the CA/Browser Forum

The Certification Authority Browser Forum (CA/Browser Forum) is a voluntary gathering of Certificate Issuers and suppliers of Internet browser software and other applications that use certificates (Certificate Consumers).

More information for about the forum and information for Site Owners, Developers, Auditors and Assessors, and Potential Members can be found in the About section of this website.

Recent posts

2025-10-17 Minutes of the S/MIME Certificate Working Group
October 17, 2025 by Minutes of SMCWG October 17, 2025 Face-to-Face CABF #66, Warsaw Poland
Ballot SC-088v3: DNS TXT Record with Persistent Value DCV Method
October 9, 2025 by Wayne ThayerBallot SC-088v3: DNS TXT Record with Persistent Value DCV MethodVoting Results Certificate Issuers 26 votes in total:
2025-10-08 Minutes of the S/MIME Certificate Working Group
October 8, 2025 by Minutes of SMCWG October 8, 2025 These are the Minutes of the meeting described in the subject of this message. Corrections and clarifications where needed are encouraged by reply.
More posts of the CA/Browser Forum
Latest releases
Server Certificate Requirements
SC088v3: DNS TXT Record with Persistent Value DCV Method - Nov 11, 2025

Code Signing Requirements
v3.8 - Aug 5, 2024

What’s Changed CSC-25: Import EV Guidelines to CS Baseline Requirements by @dzacharo in https://github.com/cabforum/code-signing/pull/38 Full Changelog: https://github.com/cabforum/code-signing/compare/v3.7...v3.8

S/MIME Requirements
v1.0.12 - Ballot SMC014 - Oct 13, 2025

This ballot introduces requirements that a Certificate Issuer MUST deploy DNSSEC validation back to the IANA DNSSEC root trust anchor on all DNS queries associated with CAA record lookups performed by the Primary Network Perspective, effective March 15, 2026. The ballot is intended to maintain consistency in the S/MIME Baseline Requirements with the requirements of Ballot SC-085 which implemented identical requirements in the TLS Baseline Requirements. Note: SC-085 also introduced requirements in TLS Baseline Requirements for the use of DNSSEC in domain control validation. These requirements are automatically adopted in the S/MIME BR by the email domain control methods that include a normative reference to section 3.2.2.4 of the TLS Baseline Requirements. The draft also includes minor corrections to web links in the text. This ballot is proposed by Stephen Davidson (DigiCert) and endorsed by Client Wilson (Apple) and Ashish Dhiman (GlobalSign).

Network and Certificate System Security Requirements
Version 2.0.5 (Ballot NS-008) - Jul 9, 2025

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The Certification Authority Browser Forum (CA/Browser Forum) is a voluntary gathering of Certificate Issuers and suppliers of Internet browser software and other applications that use certificates (Certificate Consumers).