SEO
Entity SEO
Entity SEO is the practice of optimizing a website so search engines recognize the real-world entities, people, organizations, places, products, concepts, that the content is about. Instead of matching keyword strings, entity SEO helps Google place your content in the Knowledge Graph and connect it to related entities it already knows.
Why It Matters
Google's search has been entity-first since the Knowledge Graph launched in 2012, and the shift accelerated with MUM, BERT, and AI Overviews. Modern search doesn't match words; it matches meaning tied to entities. A page that clearly identifies its entities, and how they relate, is eligible for knowledge panels, "People Also Ask," rich results, and AI Overview citations. A page that only repeats keywords without entity clarity increasingly loses out to pages that Google can map onto its graph.
What Counts as an Entity
From Google's perspective, an entity is "a thing or concept that is singular, unique, well-defined, and distinguishable." Examples: Taylor Swift, Seoul, Python (programming language), Core Web Vitals, Powerblog (company).
Entities have attributes (born, founded, color, version) and relationships (works at, located in, authored by). Together, these form the Knowledge Graph.
How Google Identifies Entities
Structured data: schema.org markup, Organization, Person, Product, Article, directly declares entities.
Wikipedia / Wikidata: Still the backbone. An entity that exists in Wikidata is unambiguous to Google.
Co-occurrence: If "Powerblog" consistently appears near "blog platform," "SEO," and "Korean startup," Google builds an entity profile from context.
Authority and citations: Who links to this entity, who mentions it, in what context.
Disambiguation signals: "Apple" the fruit vs "Apple" the company, Google uses surrounding entities to decide which one a page is about.
How to Do Entity SEO
1. Mark up your entities with schema.org: Organization, Person, Product, Article, FAQPage. Use JSON-LD in <head>.
2. Build a Wikidata entry for your brand, founders, and key products. This is the single highest-leverage entity move.
3. Define entities clearly on the page: A "What is X" section on the first mention of each important entity.
4. Use consistent naming: Don't alternate between "Powerblog," "Powerblog," and "Powerblog Inc.", pick one and stick with it across the site, bio links, press, and social.
5. Co-occurrence with related entities: Mention the other entities Google already associates with the target, competitors, complementary tools, industry concepts. This builds the entity's context.
6. Author bios with entity markup: Link author pages to their LinkedIn, Wikipedia, Google Scholar, anything that disambiguates them as a real entity.
7. Internal linking by entity, not keyword: Link "Powerblog" consistently to the Powerblog entity page, even when anchor text varies.
Entity SEO vs Keyword SEO
| Aspect | Keyword SEO | Entity SEO |
|---|---|---|
| Unit of optimization | Strings | Things |
| How Google matches | Token overlap | Concept + relationship |
| Strength in AI era | Weakens | Grows |
| Key assets | Keyword targets | Schema, Wikidata, author authority |
| Failure mode | Keyword-stuffed pages | Pages about no clear entity |
Keyword SEO still matters, search queries are still strings, but the winning approach is to use keywords as signals for the underlying entity, not as the target itself.
Entity SEO and AI Overviews
AI Overviews are built on entity understanding. When Gemini decides which sources to cite, it picks pages where the relevant entities are clearly defined and richly connected. Sites with strong entity SEO appear disproportionately in citations, they're the cleanest source for "the thing" the user asked about.
Sources
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