AI & Search 7 min read · March 15, 2025

What is GEO? A Marketer's Guide to Generative Engine Optimisation

Google AI Overviews, ChatGPT Search, and Perplexity AI are changing how buyers discover brands. GEO is the new discipline that gets you cited — not just ranked.

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AKA Digital Team Managing Partner, AKA Digital
GEO AI Search SEO
What is GEO? A Marketer's Guide to Generative Engine Optimisation

Generative Engine Optimisation (GEO) is the practice of structuring your brand's content, authority signals, and technical data so that AI-powered search systems — including Google AI Overviews, ChatGPT Search, Perplexity AI, and Microsoft Copilot — cite your brand in their generated responses. Unlike traditional SEO, GEO is not about ranking on a results page. It is about being selected as a trusted source by a language model writing answers on behalf of users.

Why GEO Matters for Brands in Southeast Asia in 2025

AI-generated search responses now appear on over 40% of Google searches in markets where they have rolled out. Perplexity AI handles more than 100 million queries per week. A 2024 Gartner study projects that traditional search engine volume will drop by 25% by 2026 as AI interfaces absorb early-stage research. For B2B brands across Vietnam, Singapore, Indonesia, Thailand, and South Korea, this means buyers are researching your category inside an AI interface before they ever visit your website. If your brand is not cited in those responses, you are invisible in the earliest stage of the buying journey.

How GEO Differs from Traditional SEO

SEO optimises for visibility on a ranked list. GEO optimises for inclusion in a generated answer. The underlying mechanics differ significantly. SEO relies on backlinks, keyword density, and page authority. GEO relies on entity clarity, content structure, and citation patterns that language models can extract and trust. A brand that ranks second in Google may still be cited first in a ChatGPT response if its content is more directly structured around answerable questions.

The Five Pillars of GEO Strategy

  • Entity Clarity — consistent brand identity across Wikipedia, Wikidata, Google Knowledge Graph, Crunchbase, and industry directories
  • Citation-Ready Content — short, declarative sentences; direct answers within the first 150 words; H2 and H3 headings framed as questions
  • Authority Signal Building — earned mentions in industry publications, conference proceedings, and partner press releases
  • Answer Engine Optimisation (AEO) — content structured around natural-language questions with 40–60 word answers beneath each heading
  • Technical Schema Markup — FAQPage, HowTo, Organization, and Article schemas that give AI systems machine-readable context

Measuring GEO Performance

Traditional SEO metrics only partially capture GEO impact. You also need to measure AI citation rate (how often your brand appears when relevant queries run across ChatGPT, Perplexity, and Google AI Overviews), share of voice in AI-generated answers, and downstream branded search uplift. AKA Digital uses the Hashmeta.ai GEO platform to track brand visibility across AI search engines for clients across Southeast Asia.

Frequently Asked Questions About GEO

What is Generative Engine Optimisation (GEO)?

GEO is the practice of optimising brand content so that AI-powered search engines — such as Google AI Overviews, ChatGPT Search, and Perplexity AI — cite your brand when generating answers to relevant queries. It combines SEO, AEO, and structured data best practices to improve AI citation frequency.

How is GEO different from SEO?

SEO targets ranked positions on a search results page. GEO targets inclusion in AI-generated answer text. GEO prioritises entity authority, structured content, and direct answers over keyword density and backlink volume.

How do I start with GEO for my business in Vietnam or Southeast Asia?

Start with a GEO audit: run 20–30 queries relevant to your category across ChatGPT, Perplexity, and Google AI Overviews. Note which brands are cited. Then audit your own site against the five GEO pillars — entity clarity, content structure, authority signals, AEO formatting, and schema markup. AKA Digital offers free GEO audits for enterprise brands across Southeast Asia.

AKA Digital's GEO practice covers Google AI Overviews, ChatGPT Search, Perplexity AI, and Bing Copilot — with market benchmarking for Vietnam, Singapore, Indonesia, Thailand, and South Korea. Book your free GEO audit.

Tags

GEO AI Search SEO AEO Content Strategy Generative Engine Optimisation
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AKA Digital Team Managing Partner, AKA Digital

AKA Digital is Southeast Asia's leading B2B MarTech agency — Vietnam's exclusive representative for world-class marketing technology platforms, licensed to operate across the region.

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