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Re: [ #701121] Duplicate content?

From: Peter O'Gorman
Subject: Re: [ #701121] Duplicate content?
Date: Mon, 24 Oct 2011 13:54:02 -0500
User-agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv: Gecko/20110906 Fedora/3.1.14-1.fc14 Thunderbird/3.1.14

On 10/24/2011 11:05 AM, Jason Self via RT wrote:
Josh wrote:

I search the Emacs manual using Google's "site:" operator. For example:

I've been noticing that pages in the manual don't always show up in the
search results when I use this method. For example, when I search the
manual for "refill", the Refill page doesn't show up:

I think this may be due to the fact that the Emacs manual is shown via
multiple distinct URLs, which Google perceives as duplicate content:

Here's an article that addresses the problem of duplicate content:

Thanks for maintaining It's one of the most useful sites on the

Take care,

Hello libtool maintainers, just forwarding the above feedback to you for
your consideration. Perhaps one option might be linking to the GNU Emacs
manual instead of maintaining an independent copy?

Do we control this? Using curl I see it redirect with a 301:

* Connected to ( port 80 (#0)
> GET /software/libtool/manual/emacs HTTP/1.1
> User-Agent: curl/7.21.0 (x86_64-redhat-linux-gnu) libcurl/7.21.0 NSS/ zlib/1.2.5 libidn/1.18 libssh2/1.2.4
> Host:
> Accept: */*
< HTTP/1.1 301 Moved Permanently
< Date: Mon, 24 Oct 2011 18:51:19 GMT
< Server: Apache/2.2.14
< Location:
< Cache-Control: max-age=0
< Expires: Mon, 24 Oct 2011 18:51:19 GMT
< Vary: Accept-Encoding
< Content-Length: 333
< Content-Type: text/html; charset=iso-8859-1

I don't see 'emacs' in libtool's web cvs:


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