Wikidata property coverage for 12 matched SEO software entities
A bounded completeness study of official website, inception, headquarters, and developer properties for manually matched SEO software entities in Wikidata.
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Among 12 manually matched SEO software entities in Wikidata on September 13, 2026, 11 had an official website property, 10 had inception data, 9 had headquarters data, and none used the developer property. Missing properties mean unknown, not false. The denominator excludes brands that could not be confidently matched.
I queried four properties for 12 manually reviewed Wikidata entity matches drawn from the SEO tool cohorts.
Property coverage in a matched SEO software cohort
Official website was present for 11 of 12 matched entities; developer was absent from all 12.
View chart data
| Measure | Matched entities |
|---|---|
| Official website | 11/12 |
| Inception | 10/12 |
| Headquarters | 9/12 |
| Developer | 0/12 |
Property presence among confident Wikidata matches collected September 13, 2026. Missing data means unknown, not false.
Methodology: A versioned SPARQL query used reviewed QIDs rather than matching companies by label. Unmatched brands are excluded from the denominator. Wikidata (CC0).
What it means
Wikidata is useful for stable identifiers, but property coverage is uneven even in this small, manually matched cohort. This is a completeness inventory, not evidence that filling a Wikidata property causes rankings, panels, or AI citationsAn AI citation is the visible source link an AI answer engine shows next to its generated text — the clickable reference that credits the web page it used. A citation's presence is a separate thing from whether the cited page actually supports the statement, and from being retrieved (read behind the scenes) or merely mentioned (named without a link); citation is driven more by brand mentions and being retrievable than by traditional ranking..
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