= Entity usage =

This script collects Wikidata entity usage statistics on Wikimedia wikis.

It uses a transactional design, meaning any errors will result in the job
beign aborted and preliminary results being discarded. This is done to ensure
the results are reliable. All the heavy lifting is done by relational databases.

A similar task used to be done by [https://wikidata-analytics.wmcloud.org
Wikidata Concepts Monitor] until February 2024 when it was discontinued.
From March 2025 this tool compiled the statistics instead.

== What is being counted? ==

* Entities in Wikidata's main namespace used on normal wiki-pages, including on Wikidata. 
* Entities used several times on one wiki-page is only counted once per page.
* Wikimedia wikis using the Wikibase Client extension.

== What is not being counted? ==

* Entities internally referenced in a Wikidata claim in Wikidata's main namespace.
* Entities internally references in a Commons claim in Commons' File namespace.
* Lexeme and Property entities.
* Entities referenced from Wikidata Query Service (WDQS) or Structured Data for Commons (SDC).
* Counts for total entity usage below 300 across all wikis are discarded.
* Wikis that doesn't use the Wikibase Client extension.
* Non-Wikimedia wikis.

== Notable changes ==

2025-08-24:
Fixed a bug that made the script crash when encountering empty DB tables.
This bug was typically triggered whenever a Wikimedia wiki was connected
to Wikidata.

2025-03-09:
Initial release.

== Miscellaneous ==

Known users are: [[User:MsynABot]] which automatically protects highly used items
on Wikidata.

Contact the author [[User:Infrastruktur]] if you have questions, requests etc.