What GEO actually is
GEO is the practice of engineering your brand, content, and entity presence to be cited by AI-powered search engines: ChatGPT, Perplexity, Gemini, and Google's AI Overviews. Unlike traditional SEO, which optimizes for crawl-ability and keyword relevance, GEO optimizes for trustworthiness, entity clarity, and retrieval architecture.
Why it matters now
AI search queries have grown 400% in 18 months. Users who get answers from ChatGPT or Perplexity don't visit the underlying page — unless the AI cites it. The brand that gets cited owns the impression. The brand that doesn't might as well not exist for that query.
The four engines you need to track
ChatGPT (with Browse), Perplexity, Google AI Overviews, and Gemini with grounding each have different citation patterns. Perplexity prefers recent, well-sourced content. Google AI Overviews weight featured snippet eligibility. ChatGPT with Browse shows recency bias. You need to track all four separately.
The GEO foundation: entity clarity
AI models understand the world through entities, not keywords. If your brand, product, and founders aren't well-defined entities in the model's knowledge base, you can't be cited. That means Wikipedia presence, Wikidata entries, consistent NAP data, and structured data markup aren't vanity — they're GEO infrastructure.
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