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What is PRE-SIGN FAILED? What is a CAA record? - DNS Certification Authority Authorization (CAA) Resource Record

The Certification Authority Authorization (CAA) DNS Resource Record allows a DNS domain name holder to specify one or more Certification Authorities (CAs) authorized to issue certificates for that domain.

CAA Resource Records allow a public Certification Authority to implement additional controls to reduce the risk of unintended certificate mis-issue.

This document defines the syntax of the CAA record and rules for processing CAA records by certificate issuers.

Show details in RFC 6844:
https://tools.ietf.org/html/rfc6844

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