https://commons.wikimedia.org/wiki/File:Gradierwerk_Bad_K%C3%B6sen_%281%29.jpg#mediaviewer/File:Gradierwerk_Bad_K%C3%B6sen_%281%29.jpg

The following is suggested for re-using the file:

<p><a href="https://commons.wikimedia.org/wiki/File:Gradierwerk_Bad_K%C3%B6sen_(1).jpg#mediaviewer/File:Gradierwerk_Bad_K%C3%B6sen_%281%29.jpg"><img alt="Gradierwerk Bad Kösen (1).jpg" src="https://upload.wikimedia.org/wikipedia/commons/2/2f/Gradierwerk_Bad_K%C3%B6sen_%281%29.jpg" height="2592" width="1936"></a><br>"<a href="https://commons.wikimedia.org/wiki/File:Gradierwerk_Bad_K%C3%B6sen_(1).jpg#mediaviewer/File:Gradierwerk_Bad_K%C3%B6sen_%281%29.jpg">Gradierwerk Bad Kösen (1)</a>" by <a href="commons.wikimedia.org/wiki/User:Rillke" title="User:Rillke">Rillke</a> - <span class="int-own-work">Own work</span>. Licensed under <a title="Creative Commons Attribution-Share Alike 3.0-de
" href="http://creativecommons.org/licenses/by-sa/3.0/de/deed.en
">CC BY-SA 3.0</a> via <a href="commons.wikimedia.org/wiki/">null</a>.</p>

Note the "via null" at the end. This should be obviously the pretty name of the project the image comes from.

Version: unspecified
Severity: normal