AEO vs. GEO vs. SEO: what is the difference?
SEO competes for a position in a list of links, AEO competes to be the passage an AI assistant quotes, and GEO competes to be the brand a language model recommends—three layers of the same visibility system.
How do SEO, AEO and GEO compare?
| SEO | AEO | GEO | |
|---|---|---|---|
| Full name | Search Engine Optimization | Answer Engine Optimization | Generative Engine Optimization |
| Goal | Rank in the list | Be the quoted answer | Be the recommended brand |
| Unit | The page | The passage | The entity |
| Engine | Ranking over a link index | Passage extraction | LLM synthesis across sources |
| Key signals | Relevance, links, page experience | Direct answers, structure, evidence | Entity clarity, third-party consensus, crawl access |
| Metric | Rankings, clicks | Answer inclusion | Mentions, citations, share of voice |
| Failure mode | Page two | Paraphrased without credit | A competitor named instead |
Do you need all three?
Yes, because they stack. Google states that its AI features rely on normal Search eligibility, so SEO is the foundation. AEO makes pages quotable. GEO makes the brand recommendable. Skipping the lower layers caps what the upper ones can achieve.
What should you do first?
- SEO basics: indexable pages, clean HTML, internal links, fast load times.
- AEO: answer-first pages for the questions your buyers ask.
- GEO: a precise entity definition and mentions on independent sources.
- Measurement: a fixed prompt set tracked across engines every month.
Frequently asked questions
Is GEO just a new name for SEO?
No. SEO optimizes pages for ranking; GEO optimizes how a language model perceives and recommends an entity across many sources, including sources you do not own.
Which matters more in 2026, SEO or GEO?
They are not alternatives. Generative engines retrieve from indexed pages, so SEO remains the base; GEO determines whether you are named once a model writes its answer.