[Labs-l] IMPORTANT: hotlinking of images on wikitech

[Siebrand Mazeland (WMF)]

On Fri, Jan 10, 2014 at 4:35 PM, Brad Jorsch (Anomie) <bjorsch at wikimedia.org
> wrote:

> On Fri, Jan 10, 2014 at 10:26 AM, Marc A. Pelletier <marc at uberbox.org>wrote:
>
>> Please make sure that any content you serve to your users is done by
>> your tool and not hotlinked from another non-project site.
>>
>
> Is it allowed to hotlink to project sites, such as Commons or enwiki?
>

Yes. Per
https://commons.wikimedia.org/wiki/Commons:Reusing_content_outside_Wikimedia#Hotlinking_or_InstantCommons:

It is possible to use files directly on Commons within another website, by
setting up a MediaWiki wiki with InstantCommons, so that Commons files can
be used as easily as they can on Wikipedia. Directly using a Commons file
via embedding its URL ("hotlinking") is also possible, but is not
recommended[1]. [..] Additionally you should always check if the needs of
the license used by the file are fulfilled if you use a file from Commons,
since e.g. the CC-BY-SA 3.0 license requires that you attribute the author
and licensor of a work in "reasonable to the medium or means".

[1] Hotlinking <https://en.wikipedia.org/wiki/Inline_linking> is
*allowed*from Wikimedia servers, but *not
generally recommended*: this is because anyone could change, vandalise,
rename <https://bugzilla.wikimedia.org/show_bug.cgi?id=35721> or delete a
hotlinked image. On your own server, you will have control over what is
served.

Siebrand
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