GEO vs AEO vs SEO: Understanding the Evolution of Search in the Age of AI

The Shift from Search to Understanding

For two decades, digital marketing has treated visibility as a search problem: how to rank, how to be found, how to win the click. That logic breaks down in an environment where discovery is increasingly mediated by large language models.
AI systems no longer return lists of links; they synthesize, evaluate, and recommend. Visibility now depends not only on being seen, but on being interpretable.

At Azoma.ai we describe this transition as the move from Search Engine Optimization (SEO) to Generative Engine Optimization (GEO) — a shift from optimising for queries to optimising for comprehension.

SEO: The Foundation of Machine-Readable Credibility

Traditional SEO still provides the operational bedrock of discoverability. It ensures that a brand’s data is crawlable, renderable, and indexable — the three mechanical prerequisites for inclusion in any search corpus.
Yet these foundations are no longer enough. Search engines and LLMs now evaluate semantic coherence, source trust, and contextual alignment. Classic ranking factors like backlinks and metadata still matter, but they now serve as training data for algorithms that model expertise rather than just measure popularity.

AEO: The First Bridge to Machine Interpretation

Answer Engine Optimization (AEO) emerged as marketers began to notice that AI systems were providing answers, not just search results.
In AEO, the goal is to structure content so that an intelligent system can extract a definitive, well-cited answer. This means precision in language, entity markup, and data provenance.
AEO is where SEO meets knowledge engineering: building a corpus that communicates unambiguously with both users and machines.

GEO: Visibility for Generative AI

Generative Engine Optimization (GEO) extends AEO into the conversational layer — where LLMs generate responses, recommendations, and reasoning chains.
Here, visibility depends on three factors:

  1. Retrievability – ensuring the system can find your information.

  2. Contextual Integrity – ensuring it understands how that information relates to user intent.

  3. Attribution Trust – ensuring your brand is credible enough to be cited or surfaced within the model’s response.

GEO is not a new discipline; it’s the integration of SEO, AEO, and data-governance principles into a single framework designed for generative contexts.

At Azoma.ai, we operationalize GEO through structured knowledge assets — datasets, schema, and ontologies that LLMs can interpret as canonical sources of truth.

This continuum reflects the evolution from indexing pages to indexing meaning. GEO does not replace SEO; it absorbs it.

Beyond Traffic: Measuring Inclusion and Comprehension

In the age of intelligent systems, metrics such as clicks and impressions lose explanatory power. The next generation of marketing measurement will hinge on:

  • Inclusion — whether a brand’s knowledge is represented within AI responses.

  • Comprehension — whether that knowledge is accurately interpreted by machines.

  • Credibility — whether the system prefers your data when generating output.

These are the visibility signals of the AI era — measurable not through analytics dashboards, but through machine-level retrieval and citation testing.

OUR WORK

Our work focuses on transforming organisational knowledge into AI-ready data assets. By combining technical SEO discipline with data semantics, we make brand expertise discoverable, interpretable, and trustworthy — to both people and machines.

GEO vs AEO vs SEO isn’t a debate about terminology; it’s a roadmap for operational readiness in a world where visibility is algorithmic understanding.

GEO, AEO, SEOFrancesca Tabor