CA/Browser Forum
Home » All CA/Browser Forum Posts » Guidance on the Deprecation of Internal Server Names and Reserved IP Addresses

Guidance on the Deprecation of Internal Server Names and Reserved IP Addresses

This document explains the changes to Certification Authority support for internal server names and reserved IP dddresses and the reasons behind the new rules that were introduced in the Baseline Requirements for the Issuance and Management of Publicly Trusted Certificates, Version 1.0 that took effect effect on July 1, 2012: Guidance on the Deprecation of Internal Server Names and Reserved IP Addresses

Latest releases
Server Certificate Requirements
SC-089: Mass Revocation Planning - Aug 26, 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
v1.0.11 - Ballot SMC013 - Aug 22, 2025

This ballot introduces specifications for the use of two post-quantum cryptography (PQC) algorithms, as standardized by the U.S. National Institute of Standards and Technology (NIST), in the S/MIME BR.

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

Related posts
Tags
Edit this page
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).