DNS Certification Authority Authorization (CAA) Resource Record

Document Type Replaced Internet-Draft (individual)
Authors Phillip Hallam-Baker  , Rob Stradling  , Ben Laurie 
Last updated 2012-01-12 (latest revision 2011-05-10)
Replaced by RFC 6844
Stream (None)
Intended RFC status (None)
Expired & archived
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Stream Stream state (No stream defined)
Consensus Boilerplate Unknown
RFC Editor Note (None)
IESG IESG state Replaced by draft-ietf-pkix-caa
Telechat date
Responsible AD (None)
Send notices to (None)

This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


The Certification Authority Authorization (CAA) DNS Resource Record allows a DNS domain name holder to specify the certificate signing certificate(s) 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.


Phillip Hallam-Baker (philliph@comodo.com)
Rob Stradling (rob.stradling@comodo.com)
Ben Laurie (benl@google.com)

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)