Last modified: 2009-06-23 00:40:43 UTC

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Bug 19162 - rel="license" on link should replace copyright meta tag
rel="license" on link should replace copyright meta tag
Status: RESOLVED INVALID
Product: MediaWiki
Classification: Unclassified
Interface (Other open bugs)
unspecified
All All
: Normal enhancement (vote)
: ---
Assigned To: Nobody - You can work on this!
: patch, patch-need-review
Depends on:
Blocks:
  Show dependency treegraph
 
Reported: 2009-06-11 17:51 UTC by Laurence 'GreenReaper' Parry
Modified: 2009-06-23 00:40 UTC (History)
2 users (show)

See Also:
Web browser: ---
Mobile Platform: ---
Assignee Huggle Beta Tester: ---


Attachments
Removes copyright meta tag, adds rel="license" to 'copyright' footer link (1.52 KB, patch)
2009-06-11 18:09 UTC, Laurence 'GreenReaper' Parry
Details

Description Laurence 'GreenReaper' Parry 2009-06-11 17:51:00 UTC
Search engines use the rel="license" tag to determine whether content is licensed freely (see http://tantek.com/presentations/2006/09/microformats-intro/ ). We already have this link in the page footer, we're just not tagging it with the rel. We should.

Conversely, the use of the "copyright" meta tag is inappropriate (a license isn't a copyright), and essentially a waste of space on every page served by MediaWiki, as it does not appear to be used in the same way. We should remove it.
Comment 1 Laurence 'GreenReaper' Parry 2009-06-11 18:09:47 UTC
Created attachment 6218 [details]
Removes copyright meta tag, adds rel="license" to 'copyright' footer link
Comment 2 Brion Vibber 2009-06-23 00:31:51 UTC
Meta copyright tag contains a link to copyright info, which is quite relevant. Lacking a description of any particular motivation to move from the existing link to something else, resolving as INVALID for now. Keep in mind that microformat fads change quickly, and the link rel that was cool in 2006 might be ignored now. :)

Do you have a current reference for CC & copyright metadata best practices and actual known current usage by search engines?
Comment 3 Platonides 2009-06-23 00:39:38 UTC
http://lists.whatwg.org/pipermail/whatwg-whatwg.org/2009-May/thread.html
http://lists.whatwg.org/pipermail/whatwg-whatwg.org/2009-June/thread.html
(look for 'license' threads)

*rel="license" aply to the main content.
*No clear how search engines use it
*For instance, Google uses a regex to handle RDF.
*Wikipedia appears on their dicussion
Comment 4 Laurence 'GreenReaper' Parry 2009-06-23 00:40:43 UTC
The rel="license" link rel works now and works quickly. See this search, which is on a domain on which it was only recently added (in time with the CC-BY-SA switchover):
http://www.google.com/search?q=site%3Awikifur.com&as_rights=(cc_publicdomain|cc_attribute|cc_sharealike).-(cc_noncommercial|cc_nonderived)

It is used by the Creative Commons link generator:
http://creativecommons.org/license/ (try generating a license, you'll see it there)

I personally feel that Project:Copyrights is a more appropriate location for the meta copyright tag to point to, if it exists. The W3C specifies it as "a copyright statement for the current document." (http://www.w3.org/TR/html4/types.html#h-6.12)

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