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https://issues.apache.org/jira/browse/NUTCH-710?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13477797#comment-13477797
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Iwan Luijks commented on NUTCH-710:
-----------------------------------
Currently looking into creating a patch which should handle the different
Canonical features, will post again when I have a stable working version. For
others, the page about canonical pages and links is revised and more
information is added:
http://support.google.com/webmasters/bin/answer.py?hl=nl&answer=139394.
> Support for rel="canonical" attribute
> -------------------------------------
>
> Key: NUTCH-710
> URL: https://issues.apache.org/jira/browse/NUTCH-710
> Project: Nutch
> Issue Type: New Feature
> Affects Versions: 1.1
> Reporter: Frank McCown
> Priority: Minor
> Fix For: 1.6, 2.2
>
>
> There is a the new rel="canonical" attribute which is
> now being supported by Google, Yahoo, and Live:
> http://googlewebmastercentral.blogspot.com/2009/02/specify-your-canonical.html
> Adding support for this attribute value will potentially reduce the number of
> URLs crawled and indexed and reduce duplicate page content.
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