W3C home > Mailing lists > Public > www-tag@w3.org > November 2009

Re: conneg, HTTPbis, and generic resources (status check)

From: Karl Dubost <karl+w3c@la-grange.net>
Date: Wed, 25 Nov 2009 12:21:49 -0500
Message-Id: <C4C6C145-3FCB-4B9B-9555-65926ABD1870@la-grange.net>
Cc: "julian.reschke@gmx.de" <julian.reschke@gmx.de>, Dan Connolly <connolly@w3.org>, "www-tag@w3.org" <www-tag@w3.org>
To: Larry Masinter <masinter@Adobe.COM>

Le 25 nov. 2009 à 10:50, Larry Masinter a écrit :
> # Content Negotiation on languages
> Yes, using content negotiation for language selection interferes with page ranking. 
> Should there be standards specifying what parts of URIs search engines should or should not pay attention to, or whether they should index content-negotiated pages? 

Not sure about that. 
But that could be an open question for crawler developers.

> #    Vary: Accent-Language
> You noted that the "Vary" header is unlikely to help in indexing.  But the "Vary:" header was never intended or designed to have any effect on search engines.

Understood that.

> it doesn't reveal the full list of alternatives available. 

Unfortunately, Transparent Content Negotiation in HTTP has never been widely implemented, deployed.

I wonder if search engines developers would be more interested now. 

> Could you use "referer" or "origin" for filtering instead? 

No because you do not necessary from where you will be hit.

Karl Dubost
Montréal, QC, Canada
Received on Wednesday, 25 November 2009 17:22:02 UTC

This archive was generated by hypermail 2.4.0 : Friday, 17 January 2020 22:56:31 UTC