Commons:Tracking external file usage

When files from Commons are used on most Wikimedia wikis, records of that usage appear both on file pages (under "File usage on other wikis") and on Special:GlobalUsage. However files that are used on other projects are not intrinsically labelled in any way by the MediaWiki software.

To make uses on other projects more visible, Usage Bot maintains galleries containing files used on certain other projects. Those galleries then appear on file pages under "File usage on Commons" alongside other uses on Commons. At the moment, the following projects are covered:

• Commons:Files used on Wikitech covers Wikitech, which is a Wikimedia project whose uses of images do not appear in Special:GlobalUsage for technical reasons.
• Various MediaWiki instances run by Wikimedia movement affiliates outside of Wikimedia infrastructure (those on Wikimedia infrastructure being covered by Special:GlobalUsage):
  • Wikimedia chapters:
    • Commons:Files used on Wikimedia Österreich Mitglieder for wmat:
    • Commons:Files used by Wikimedia Australia for wmau:
    • Commons:Files used by Wikimedia Czech Republic for wmcz_old:
    • Commons:Files used by Wikimedia District of Columbia for wmdc:
    • Commons:Files used by Wikimédia Magyarország for wmhu:
    • Commons:Files used by Wikimedia UK for wmuk:
    • Commons:Files used on RegiowikiAT for regiowiki:, which is a regional project subject all of Austria from wmat:
  • Wikimedia user groups:
    • Commons:Files used by Deoband Community Wikimedia for https://dcwwiki.org.
• Commons:Files used on OpenStreetMap covers files referenced by the image=* and wikimedia_commons=* keys in OpenStreetMap.
• Commons:Files used on the OpenStreetMap Wiki covers the OpenStreetMap Wiki, which documents OpenStreetMap.
• Commons:Files used on the AARoads Wiki covers the AARoads Wiki.