sameAs Property
sameAs is a Schema.org property that links the same entity's multiple web identities via URLs (homepage, Wikidata, LinkedIn, X, Crunchbase). It is the strongest structured signal for AI engines to confirm entity consistency.
Category: Technical
What is sameAs Property?
sameAs is a Schema.org property that links the same entity's multiple web identities via URLs (homepage, Wikidata, LinkedIn, X, Crunchbase). It is the strongest structured signal for AI engines to confirm entity consistency.
How do you apply it in practice?
Example: in Organization JSON-LD add `sameAs: [「https://wikidata.org/wiki/Q...」, 「https://linkedin.com/company/...」]`.
Why does it matter for AI search citations?
Generative search engines tend to extract sentences that are clearly defined, consistent and quotable on their own. Writing concepts like "sameAs Property" as one consistent definition across your site, backed by structured data and verifiable sources, lowers the chance of being misread. This improves readiness only; it does not guarantee citations or ranking gains — measure actual citations to know.
Which related terms should you know?
Schema.org Structured Data
Schema.org is a structured-data vocabulary jointly maintained by Google, Bing, Yahoo, and Yandex. Once annotated via JSON-LD, search engines and AI models can directly understand whether a page is an Article, Product, FAQ, or Organization — powering rich results and precise citations.
Entity Consistency
Entity Consistency means a brand, founder, and product use the same name, description, and links across Wikidata, Wikipedia, G2, Product Hunt, LinkedIn, etc. AI models run entity coreference resolution to decide whether sources refer to the same thing — inconsistency dilutes brand authority.
Knowledge Graph
A Knowledge Graph is a structured entity-relation network (company → founder → product → competitor). Google's KG powers AI Overviews and Knowledge Panels. Keys to inclusion: a Wikidata QID and consistent sameAs links.
sameAs Property at a glance
| Term | sameAs Property |
|---|---|
| Category | Technical |
| Last reviewed | 2026-10-06 |
References
- Google Search Central: SEO documentation
- Schema.org structured data vocabulary
- W3C JSON-LD 1.1 Recommendation
- GEO: Generative Engine Optimization (arXiv paper)
These documents support the definitions and methods, not ranking or citation promises; reviewed as of 2026-10-06.
By the 23SEOGEO team · Last updated: