[link-relations] NEW RELATION - canonical

Frank Ellermann <hmdmhdfmhdjmzdtjmzdtzktdkztdjz@gmail.com> Fri, 15 April 2011 18:09 UTC

Return-Path: <hmdmhdfmhdjmzdtjmzdtzktdkztdjz@gmail.com>
X-Original-To: link-relations@ietfc.amsl.com
Delivered-To: link-relations@ietfc.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfc.amsl.com (Postfix) with ESMTP id 1B6A3E090F for <link-relations@ietfc.amsl.com>; Fri, 15 Apr 2011 11:09:51 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -103.099
X-Spam-Level:
X-Spam-Status: No, score=-103.099 tagged_above=-999 required=5 tests=[BAYES_00=-2.599, FROM_LOCAL_NOVOWEL=0.5, RCVD_IN_DNSWL_LOW=-1, USER_IN_WHITELIST=-100]
Received: from mail.ietf.org ([208.66.40.236]) by localhost (ietfc.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id tIZkfN33Y8JS for <link-relations@ietfc.amsl.com>; Fri, 15 Apr 2011 11:09:42 -0700 (PDT)
Received: from mail-pv0-f172.google.com (mail-pv0-f172.google.com [74.125.83.172]) by ietfc.amsl.com (Postfix) with ESMTP id 4A506E0768 for <link-relations@ietf.org>; Fri, 15 Apr 2011 11:09:42 -0700 (PDT)
Received: by pvh1 with SMTP id 1so1494781pvh.31 for <link-relations@ietf.org>; Fri, 15 Apr 2011 11:09:41 -0700 (PDT)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:date:message-id:subject:from:to :content-type; bh=YG2RhLEzhqDSu6emMIFvLwsm+D//trO/gThqvVtYkMU=; b=IK2Jntkx8FJLUsMySYvKJ/qqub/Au+WatKhgtBze8IFUne/YccdQD6XBBYcWDr80n+ SIF8xO0PaJCS4FQv7mtrdFYEYWYJ/CWTOHrEVT3omH5oLpeYgOtuBSwxy0P8J4JLtRvW TIEdguY6R28RGzo6lOCsJU14Y4yITzJHmucJ0=
DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:date:message-id:subject:from:to:content-type; b=On7Lrbgr1Qp//lO/6sP2LizE2BCu/yDXGyyghRuEVQYmRjF5OUEROX9bIAcfDYcxQO SgOz3wouFBnVCB+dP0ZzgWXrHsguEwawa9Ss6J7NU4/J/mJssGqdB3hjZ0TT6w4EMiXS B6RMqZ/Lfkr26M9ccBzIg9DPSYRYlCSqaPPBo=
MIME-Version: 1.0
Received: by 10.142.144.20 with SMTP id r20mr981975wfd.76.1302890981561; Fri, 15 Apr 2011 11:09:41 -0700 (PDT)
Received: by 10.142.89.5 with HTTP; Fri, 15 Apr 2011 11:09:41 -0700 (PDT)
Date: Fri, 15 Apr 2011 20:09:41 +0200
Message-ID: <BANLkTikDYGMKinQh1xFKfQFVjaoSDcX0KA@mail.gmail.com>
From: Frank Ellermann <hmdmhdfmhdjmzdtjmzdtzktdkztdjz@gmail.com>
To: link-relations <link-relations@ietf.org>
Content-Type: text/plain; charset="ISO-8859-1"
X-Mailman-Approved-At: Fri, 15 Apr 2011 11:27:52 -0700
Subject: [link-relations] NEW RELATION - canonical
X-BeenThere: link-relations@ietf.org
X-Mailman-Version: 2.1.12
Precedence: list
List-Id: <link-relations.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/link-relations>, <mailto:link-relations-request@ietf.org?subject=unsubscribe>
List-Archive: <http://www.ietf.org/mail-archive/web/link-relations>
List-Post: <mailto:link-relations@ietf.org>
List-Help: <mailto:link-relations-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/link-relations>, <mailto:link-relations-request@ietf.org?subject=subscribe>
X-List-Received-Date: Fri, 15 Apr 2011 18:09:51 -0000

Relation Name: canonical
Description:   A "canonical" URI is the preferred version of a set of URIs
               with highly similar content.  It is intended to help search
               engines when the same or highly similar similar content is
               available at different URIs.
Reference:     About rel="canonical"
               http://www.google.com/support/webmasters/bin/answer.py?answer=139394
Notes:         In <http://www.mattcutts.com/blog/canonical-link-tag/> and
               <http://gregable.com/2009/02/relcanonical.html> the authors
               state that Ask, Bing, Google, and Yahoo supported canonical
               URIs as of February, 2009.