Entity Density
Entity Density is the number of named entities (products, technologies, companies, concepts) per 100 words of content — a structural signal AI engines weight heavily when matching pages to category queries.
Entity Density is the number of named entities (products, technologies, companies, concepts) per 100 words of content — a structural signal AI engines weight heavily when matching pages to category queries. A page about "the best AEO platform" that names ChatGPT, Perplexity, Gemini, Claude, Grok, FAQPage schema, robots.txt, and llms.txt scores high on entity density. A page that talks abstractly about "leading AI solutions" scores near zero.
The reason entity density correlates with citation is mechanical: AI engines tokenise the page, identify named entities via NER (named-entity recognition) models, and match those entities against the entities in the user's query. A query like "what's the best AEO tool for ChatGPT" matches pages that name both "AEO" and "ChatGPT" with concrete co-occurrences. Pages that name neither don't surface.
High entity density also signals expertise — a page that uses the right vocabulary for its category demonstrates the author knows the territory. AI engines weight this as an E-E-A-T signal alongside the explicit author/Organization markup.
AEOlens scores entity density per page as one of its 48 structural checks. Common gaps: marketing pages heavy on adjectives ("powerful", "industry-leading") but light on named entities. Quick fix: replace adjectives with the specific feature, integration, or competitor by name.
Frequently asked
What's a good entity density to aim for?
Roughly 4–8 named entities per 100 words for product/marketing pages. Higher for technical reference content (10+), lower for narrative blog posts. The exact number matters less than whether the right entities for the page's topic are present at all.
Does naming competitors help or hurt entity density?
Helps. Comparison pages that name competitors (alongside your own brand and category terms) score higher on entity density AND attract higher-intent search traffic. The instinct to avoid naming competitors costs AEO score.
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