SEO, AEO and GEO are three layers of the same goal: being found when people search. SEO (Search Engine Optimization) ranks pages in lists of links. AEO (Answer Engine Optimization) makes your content the direct answer in featured snippets and voice results. GEO (Generative Engine Optimization) gets your content selected and cited inside AI-generated answers in Google AI Overviews, ChatGPT, Perplexity, Gemini and Copilot.
The short version
| SEO | AEO | GEO | |
|---|---|---|---|
| Question it answers | Will my page rank? | Will my content be the answer? | Will AI cite or mention me? |
| Unit of success | Position and click | Featured answer | Citation, mention, share of answers |
| Typical signals | Relevance, links, technical health, page experience | Question headings, concise answers, schema | Extractable facts, entity clarity, crawler access, independent sources |
| Main measurement | Rankings, clicks | Snippet ownership | Live AI answer sampling, AI referrals |
How they overlap
All three depend on the same foundations: pages that can be crawled and indexed, content that genuinely helps people, and a trustworthy site. A page blocked by robots.txt or full of thin content fails at SEO, AEO and GEO alike. That is why GEO is best seen as an extension of SEO, not a replacement.
What GEO adds
- AI crawler access. AI search engines use their own bots, such as OAI-SearchBot for ChatGPT search and PerplexityBot for Perplexity. They must be allowed. Check yours.
- Passage-level quality. AI answers quote passages, not pages. Each key paragraph should be self-contained and specific.
- Factual density. Concrete numbers, dates and named examples make your content more useful than general statements.
- Entity clarity. Organization schema, sameAs links and consistent facts help AI systems know exactly who you are.
- Independent corroboration. AI engines favour claims confirmed by other reputable sites, so mentions on directories, publications and review sites matter.
Where to focus first
- Fix SEO blockers: indexing, crawl access, page speed and duplicate content.
- Apply AEO formatting to your top pages: question headings and direct answers.
- Add GEO signals: facts, sources, schema, author information and outreach to the sites AI already cites.
- Measure all three: rankings and clicks in Search Console, and citations in live AI answers with the AI visibility checker.
The free GEO score checker covers all three layers in one audit: 22 checkpoints across content quality, AI readiness, technical basis and authority.
Frequently asked questions
Is SEO dead because of AI search?
No. AI search engines retrieve content from the web, and Google AI Overviews use the Google Search index. Strong SEO remains the foundation; GEO and AEO build on it.
Which should I prioritise, AEO or GEO?
Start with AEO formatting on your most important pages because it is quick and benefits every platform, then add GEO signals such as entity schema, facts and independent mentions.
Do GEO and SEO ever conflict?
Rarely. Clear answers, structured content and credible sources help both. The main conflict is blocking AI crawlers, which can protect content but removes you from AI answers.