Guide : Entity & Identity Schema

The schema types que declare who and ce que is behind a site — Organization, LocalBusiness, and Person — and how ils connecter que identity to Google's Knowledge Graph.

Première publication : 1 juil. 2026 · Dernière mise à jour : 3 août 2026 · Advanced
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"Entity & identity schema" is my non-exhaustive étiquette — pas an official un — pour three schema.org types que declare who or ce que is behind a site: Organization, LocalBusiness, and Person. Leur job isn't résultats enrichis; it's disambiguation — telling Google qui real-world entity une page belongs to, and connecting que claim to authoritative profiles via sameAs (exemples comme Wikipedia, Wikidata, verified social accounts — pas requirements). LocalBusiness is a subtype of Organization, so utiliser the la plupart spécifique un que fits; Person is the individual counterpart. Ce n’est pas a ranking factor and it ne fait pas guarantee a Knowledge Panel — sameAs is an identity-resolution signal, pas a magic trust lever, and a incorrect sameAs valeur peut actively misattribute votre entity. Si it affecte AI-answer citation is a plausible but unproven hypothesis, pas a documented mechanism. Ce hub explique the concept and routes vous to the three deep dives.

TL;DR — “Entity & identity schema” is my non-exhaustive umbrella term pour Organization, LocalBusiness, and Person — the schema.org types whose job is disambiguation, pas résultats enrichis. Ils declare qui real-world entity a site belongs to and, via sameAs, tie que claim to authoritative records (exemples comme Wikipedia, Wikidata, verified profiles — pas requirements) so engines peut resolve it. LocalBusiness is a subtype of Organization — utiliser the la plupart spécifique type que fits; Person is the individual counterpart. It is pas a ranking factor and fait pas guarantee a Knowledge Panel; sameAs is an identity-resolution signal, pas a trust lever, and a reused or misdirected valeur actively misattributes votre entity. Si it drives AI-answer citation is an unproven hypothesis, pas a documented mechanism.

Ce que Google signifie by “entity”

Entities are identifiable choses in information systems; données structurées peut clarify identity but ne fait pas guarantee Knowledge Graph inclusion. Evidence for this claim Official or primary documentation supporting the adjacent article claim, with scope limited to the source's published description. Scope: No ranking guarantee or undisclosed system mechanics are inferred beyond the cited source. Confidence: high · Verified: Schema.org: sameAs Google’s documented structured-data rules remain feature-specific. Evidence for this claim Official or primary documentation supporting the adjacent article claim, with scope limited to the source's published description. Scope: No ranking guarantee or undisclosed system mechanics are inferred beyond the cited source. Confidence: high · Verified: Google: Structured data policies

An entity is a uniquely identifiable real-world chose que Google stores in its Knowledge Graph — personnes, places, organizations, but aussi abstract concepts. Google resolves an entity by cross-referencing signals à propos de it à travers nombreux independent sources: votre propre website, votre social profiles, directories, public databases, notable press mentions, and structured records comme Wikidata. Entity schema is votre chance to state votre identity clearly and point Google at ceux autre records so it peut line les up with confidence.

Un distinction worth keeping straight: Google’s Knowledge Graph Search API is a developer outil pour querying entities — it is pas the même system as the ranking-facing Knowledge Panel, and marking up Organization schema doesn’t “submit” vous to it. Don’t conflate the API with how identity schema feeds the panel; they’re différent choses.

Identity schema vs. content schema

Ce is the central distinction of ce hub, so let me draw it cleanly:

  • Content schemaArticle, Product, FAQPage, HowTo, Recipe — describes ce que is on lune page. Its usual payoff is rich-result eligibility: a visible SERP enhancement (stars, price, breadcrumbs).
  • Identity schemaOrganization, LocalBusiness, Person — describes who or ce que publishes lune page. Its payoff is entity understanding and disambiguation, with aucun visible badge attached.

The practical consequence: identity schema is worth implementing même though it usually produces aucun rich result. That’s the opposite instinct from la plupart schema fonctionner, and it’s pourquoi personnes who seulement think in “rich results” tend to skip it.

The three identity-bearing types

Ils aren’t three unrelated siblings — they’re a base type, a specialization of it, and an individual counterpart:

  • Organization is the base/umbrella type pour quelconque company or brand. It’s the un almost every site devrait have.
  • LocalBusiness is technically a subtype of Organization (Thing > Organization > LocalBusiness), pour businesses with a physical or local presence — hours, adresse, service area. Google’s guidance is to utiliser the la plupart spécifique applicable subtype, so a local business uses LocalBusiness (or a narrower subtype comme Restaurant), pas generic Organization.
  • Person sits in its propre branch (Thing > Person). It establishes an individual identity — an author, a founder or exec, a consultant, a sole proprietor, anyone building a personal brand que nécessite to be distinguished from same-named personnes.

A unique site souvent uses plus que un: an Organization pour the brand and Person markup pour the authors, ideally lié into un graph (voir @id ci-dessous).

sameAs and identity resolution

sameAs is the core mechanic. Schema.org defines it plainly: une URL to a référence page que unambiguously identifies the item — Wikipedia, Wikidata, or an official website are the exemples schema.org donne, pas a requis liste. Practically, vous référence the profiles que genuinely décrire vous: a Wikidata entry, a Wikipedia page si vous have un, verified social accounts. On the Organization side, the homepage is the unique la plupart important placer to establish brand identity, with at least name, logo, url, and sameAs.

Evidence for this claim Schema.org defines sameAs as a URL to a reference page that unambiguously indicates an item's identity; Wikipedia, Wikidata and an official website are examples, not mandatory destinations. Scope: web Confidence: high · Verified: sameAs

Two rules faire or break it:

  1. Un valeur, un entity. A sameAs URL doit unambiguously identifier the entity — don’t reuse the même sameAs valeur pour two différent entities. Reusing or misdirecting it doesn’t simplement échouer to aider; it actively misattributes votre entity.
  2. sameAs is an identity-resolution signal, nothing plus documented que que. It’s schema.org’s mechanism pour pointing at un autre authoritative record of the même entity — pas a ranking boost, pas a source of “trust,” and pas a documented AI-citation lever. Quelconque claim que sameAs fait un of ceux choses is a separate, currently unsupported claim; don’t treat it as bundled into the property’s réel job.

A cautionary tale from the industry: Ryan Law at Ahrefs une fois accidentally définir his personal sameAs to Ahrefs’ blog au lieu de his propre author page, qui caused Google to misattribute his personal entity to Ahrefs’ site — a petit schema slip with a visible, wrong-in-public result. The lesson: entity schema is powerful suffisant que errors montrer up in how votre brand is represented, so double-check every valeur. The Ryan Law anecdote is relayed from Ahrefs’ Knowledge Graph guide and is paraphrased ici, pas quoted verbatim.

@id — connecting votre nodes into un graph

@id is a JSON-LD node identifier, complet arrêter — that’s ce que the JSON-LD spec defines it as: a façon to give a node in a graph a stable identifier and reuse que même identifier to refer back to it. Practically, si vous have Organization, WebSite, and Person markup scattered à travers a site, vous give the Organization node an @id URI, alors point author.@id (on a Person) or publisher.@id (on an Article) at que même URI. Que rend “ce Article’s author is ce Person, who is partie of ce Organization” unambiguous dans the JSON-LD graph vous wrote.

Ce que I can’t tell vous with the même confidence: how reliably, or in ce que formulaire, Google’s indexation systems stitch separately-crawled pages into un entity en utilisant @id matches. That’s pas something Google documents in detail. Treat consistent @id usage as bon, spec-compliant pratique and a utile implementation convention — pas a proven, documented cross-page ranking or entity-linking signal. The deep mechanics of @id belong in the Organization deep dive — pour the hub, simplement know it’s a JSON-LD identifier convention, and be honest que its cross-page effect on Google’s side is an ouvrir question, pas a documented fact.

Pourquoi ce matters pour AI search / GEO

Here’s the modern stakes, and here’s the honest boundary of what’s proven. Classic ranking and entity recognition are separate problems: vous pouvez rank #1 in traditional search and encore be invisible to an AI réponse engine que doesn’t recognize votre brand as a distinct entity — que partie is a reasonable inference from how ces systems fonctionner. Ce que I can’t back with principal evidence is a causal claim que identity schema, sameAs, or @id rend ChatGPT, Perplexity, or AI Overviews recognize or cite vous. Aucun AI provider documents que mechanism. So I’ll state it as a hypothesis, pas a fact: identity schema is plausible entity infrastructure — accurate, well-linked markup que removes ambiguity a model pourrait sinon have to guess via — but I don’t have a controlled tester showing it changements citation behavior, and vous devez be skeptical of anyone who claims ils do sans showing un. Ce ties into my broader fonctionner on AI search / GEO — being ranked and being recognized as an entity regarder comme différent battles, but the causal lien entre “recognized” and “cited” is encore an ouvrir question, pas settled infrastructure.

To be honest à propos de the evidence plus broadly: schema is souvent oversold as an AI-citation lever, and Google’s propre reps have been careful ici. John Mueller, asked si lots of schema helps LLMs comprendre entities, gave the very SEO réponse of “yes, no, and it depends” — données structurées helps engines comprendre the entities on une page, but it doesn’t faire vous rank plus élevé or obtenir labeled “best” in an AI réponse; credibility and authority encore dominate. The Mueller remark is relayed via Moteur de recherche Roundtable’s coverage and is paraphrased, pas presented as a verified verbatim quote.

There’s aussi a broader disagreement worth surfacing: pas everyone thinks “entity SEO” is même a separate discipline. Ahrefs has argued que une fois Google’s search runs on entities, “entity SEO is just SEO” — ordinary données structurées, content quality, and authority-building, pas a novel tactic définir — and the piece quotes me making the même point: “The entity identification part is more on Google’s end than on our end.” Jump to quote That’s consistent with how I’ve scoped ce hub: identity schema is accurate, verifiable markup vous contrôler, pas a checklist of special “entity optimization” moves — the réel identification and inference fonctionner se produit on the moteur de recherche’s side.

Erreurs fréquentes

  • Treating identity schema comme quelconque autre schema task. It’s pas chasing a rich result; it’s disambiguation. Judge it by si Google peut identifier votre entity, pas by si a badge montre up.
  • Reusing or misdirecting sameAs — the Ryan Law échec mode. Un valeur, un entity; vérifier every URL points où vous mean.
  • Marking up the incorrect pages. Google recommends placing Organization schema on votre homepage or a dedicated À propos de page — it fait pas besoin to be repeated on every page site-wide.
  • Assuming vous besoin Wikipedia. Vous don’t. Wikidata (beaucoup easier to créer and edit) plus consistent cross-source signals peut establish entity-hood; Wikipedia is un strong signal, pas a hard requirement.
  • Expecting a guaranteed Knowledge Panel. Schema peut faire vous eligible; Google decides. Là is aucun “submit for panel” button.

Où to go suivant

Ce hub is the map. Chaque identity type has its propre deep dive — implementation, requis and recommended properties, and validation:

  • Organization Schema — the base type pour quelconque brand or company: où it goes (homepage/À propos de), the name/logo/url/sameAs foundation, and @id graph linking. Commencer ici si vous ne faites pashing sinon.
  • LocalBusiness Schema — the specialized subtype pour physical/local presence: adresse, hours, geo, service area, and choosing the la plupart spécifique business subtype.
  • Person Schema — establishing an individual’s identity: authors, founders, experts, and personal brands, and how to lien a Person to an Organization.

Tout three sit sous the broader données structurées / balisage de données structurées cluster ce hub belongs to — si you’re encore fuzzy on the vocabulary, formats (JSON-LD vs. Microdata), and how résultats enrichis differ from entity understanding, commencer with the balisage de données structurées overview premier, alors come back ici pour the identity couche.

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