Wikipedia
The free online encyclopedia — the single most-cited domain in LLM answer surfaces by a wide margin.
Definition
Wikipedia is the volunteer-maintained free encyclopedia and the most-referenced web property by AI assistants. Getting a Wikipedia article (and its sibling Wikidata item) is a foundational entity-recognition lever for AI search. Inclusion is governed by strict notability and verifiability rules; promotional or thinly-sourced articles are aggressively pruned by the volunteer editor community.
When to use
See also
- Wikidata — Wikipedia's structured-data sibling — a free knowledge graph queried via SPARQL, widely cited by LLMs.
- structured data — Machine-readable metadata embedded in a page that describes its entities — consumed by search and AI engines.