Quick summary
Search is changing shape. Around 45% of Google searches now show an AI Overview, and those overviews cut clicks to websites by up to 58%. Meanwhile buyers ask ChatGPT, Perplexity and Claude the questions they used to type into Google. The business that wins is no longer the one ranked first. It is the one the AI quotes. That discipline has two names: AEO (Answer Engine Optimization) and GEO (Generative Engine Optimization).
What is AEO?
AEO (Answer Engine Optimization) is the practice of structuring and publishing content so AI answer engines cite it in their generated answers. Where SEO tries to rank a page in a list of links, AEO tries to get a specific passage quoted inside an answer from ChatGPT, Perplexity, Google AI Overviews, Claude or Gemini. The unit of optimization is not the page. It is the extractable passage: a self-contained answer that still makes sense when an AI lifts it out of the surrounding text.
What is GEO?
GEO (Generative Engine Optimization) is the same discipline under a different name, framed around generative AI. The term comes from the Princeton “GEO” research that measured which optimizations actually increase citations. There is no meaningful difference: AEO and GEO share one goal and one toolkit.
AEO vs GEO vs SEO
They are layers, not competitors.
| Dimension | SEO | AEO / GEO |
|---|---|---|
| Goal | Rank in the list of links | Get cited inside an AI answer |
| Unit | The page | The extractable passage |
| Wins by | Position on page 1 | Content quality, structure, authority |
| Key assets | Titles, backlinks, speed | Schema, statistics, machine-readable data |
| Measured by | Rankings, clicks | Citations, share of AI voice |
AEO does not replace SEO, it sits on top of it. A page that cannot be crawled or rendered will never be cited. Fix the SEO foundation first, then add the AEO layer.
The three pillars of AEO
- Structure, make content extractable. Lead with the answer, keep key passages to 40 to 60 words, use headings that match how people ask, and prefer tables and lists over prose.
- Authority, make content citable. The Princeton GEO study found that citing sources boosts visibility around 40%, adding statistics around 37%, and expert quotations around 30%, while keyword stuffing actively hurts.
- Presence, be where AI looks. Brands are 6.5x more likely to be cited via third-party sources (Wikipedia, Reddit, YouTube, industry roundups) than via their own domain.
The method, step by step
1. Let AI crawlers in
If GPTBot, PerplexityBot or ClaudeBot are blocked in your robots.txt, those platforms cannot cite you. This is the highest-impact, lowest-effort fix.
User-agent: GPTBot
Allow: /
User-agent: PerplexityBot
Allow: /
User-agent: ClaudeBot
Allow: /
User-agent: Google-Extended
Allow: /2. Add structured data (schema)
Schema gives AI an unambiguous description of your page. Content with proper schema shows 30 to 40% higher AI visibility. FAQ schema is the highest-leverage type because it maps one question to one answer, exactly the shape an answer engine wants.
3. Publish a machine-readable layer
Give AI systems and agents structured files they can parse without scraping your HTML: an llms.txt overview, an AGENTS.md brief, structured /data JSON endpoints, and a .well-known/agent-skills manifest. We run exactly this layer on syncbricks.com and syncbricks.com.au.
4. Write content that gets cited
- Definition blocks for “what is X” queries, lead with a bold one-sentence answer.
- Comparison tables for “X vs Y” queries. Comparison articles are around 33% of all AI citations.
- Statistic blocks with a source and a date.
- FAQ blocks in natural language, backed by FAQPage schema.
5. Measure by citations, not rankings
Pick your 20 most important queries, run each through ChatGPT, Perplexity and Google AI Overviews monthly, and record whether you are cited, who else is, and which page. That is share of AI voice, the metric that matters.
The short version
AEO and GEO are the same goal: get cited by AI, not just ranked by Google. SEO is the foundation; AEO is the layer on top. Make content extractable, make it citable, and make yourself discoverable with structured, machine-readable data.
If you would rather have this done for you, that is exactly our AEO / GEO Optimization service: the audit, the content restructure, the schema, and the full machine-readable layer, shipped and measured by citations.