AEO vs GEO vs SEO: What Is the Difference and Which One Should You Do?
Answer Engine Optimization, Generative Engine Optimization and classic SEO are three different jobs. Here is a practical comparison and the order to do them in.
The acronyms arrived faster than the definitions. AEO, GEO and SEO are not rival religions; they are three layers of the same discipline, and confusing them wastes budget. This is the shortest accurate explanation I can give.
SEO: be findable
Search Engine Optimization is about earning a position in a ranked list of links. The output is a list; the user chooses. Success is measured in impressions, clicks, average position and conversions from organic sessions. The core work is crawling, indexing, relevance, internal linking and page experience.
AEO: be the answer
Answer Engine Optimization targets systems that respond with a single answer rather than a list — voice assistants, featured snippets, People Also Ask boxes and the answer panels inside AI Overviews. The output is one sentence, sometimes with three sources attached. Success is measured by whether your sentence is the one that gets lifted.
- Question-shaped headings that mirror real phrasing
- A direct answer in the first 40 to 60 words under each heading
- FAQPage and QAPage structured data where appropriate
- Tables and definitions, because they compress cleanly into a snippet
GEO: be the source
Generative Engine Optimization targets the models behind ChatGPT, Perplexity, Gemini and Copilot. These systems retrieve passages, synthesise them, and choose which domains to cite. The output is prose with footnotes. Success is measured in citation share and brand mentions, which is exactly what our AI Visibility Checker scores structurally.
| SEO | AEO | GEO | |
|---|---|---|---|
| Output | Ranked links | One answer | Synthesised prose + citations |
| Unit | Page | Passage | Claim + entity |
| Main lever | Relevance and links | Structure and directness | Corroboration and clarity |
| Metric | Position, CTR | Snippet ownership | Mention rate, share of voice |
| Best first fix | Indexation | Question headings | llms.txt + JSON-LD + clear claims |
Which order should you do them in?
- SEO first, always. Without crawlable, indexable, fast pages the other two have nothing to work with.
- AEO second. Rewriting headings into questions and adding a direct answer under each one improves both snippets and retrieval chunking, so it pays twice.
- GEO third and continuously. It is the layer that needs external corroboration, so it runs in parallel with PR, open-source work and community participation.
A single page can do all three at once. Put the answer first (AEO), support it with clean structure and speed (SEO), and make the entity behind it unambiguous with schema and sameAs links (GEO).
Where teams go wrong
The most common mistake is treating GEO as a content-volume problem. Publishing forty thin articles does less for citation share than one page that states an original number, explains its method and is referenced by three other sites. The second most common mistake is blocking AI crawlers out of fear of scraping while simultaneously asking why ChatGPT never mentions the brand.
Decide your crawler policy deliberately. Blocking GPTBot stops training use; blocking OAI-SearchBot removes you from live search answers. Those are different decisions with different consequences.
A realistic 90-day sequence
Weeks 1–2: technical SEO, fix indexing and Core Web Vitals. Weeks 3–5: rewrite the top ten pages with question headings and direct answers. Week 6: add schema, llms.txt, author and about pages. Weeks 7–12: publish two deep pieces per month, chase citations, and track a fixed prompt list. At the end of the quarter you will have measurable movement in all three layers rather than a pile of unfinished audits.
Frequently asked questions
Is GEO just a rebrand of SEO?
Not quite. GEO adds entity clarity and third-party corroboration to the picture, and it is measured in citations rather than positions. The technical foundation is still SEO.
Do I need separate content for AI?
No. One well-structured page can serve search, answer boxes and generative engines. Duplicating content for bots usually backfires.
Which metric should I report to management?
Report organic clicks and AI mention rate side by side. One shows demand capture, the other shows brand presence in answers.