Guides
SEO vs AEO vs GEO: What's Actually Different (With Examples)
SEO gets your page ranked in Google Search. AEO gets your specific answer quoted in a featured snippet or voice response. GEO gets your page cited by AI systems like ChatGPT and Gemini when they generate an answer. All three check different things, but a well-built page usually passes all three at once.
What does SEO actually check?
Search engine optimization targets a classic search algorithm: can the page be indexed, does it load fast, does it have the right tags, is the content structured for crawling. The checks are mechanical and long- standing — indexability, title tag length, meta description, heading structure, HTTPS, sitemap presence, and Core Web Vitals.
What does AEO check that SEO doesn't?
Answer engine optimization targets a narrower moment: a search engine or voice assistant pulling one direct answer out of your page to display as a snippet, without the user ever clicking through. That requires content structured differently than a typical SEO-optimized page:
- A short, direct answer near the top of a section — ideally under 60 words
- Headings phrased as the actual questions people ask, not generic labels
- A real FAQ section with FAQPage schema markup
- Tables and lists, which are easier for an extraction algorithm to lift cleanly than prose paragraphs
What does GEO check that the other two don't?
Generative engine optimization targets a large language model deciding what to cite while generating a conversational answer — a different consumer than a search index or a snippet extractor. This introduces checks that don't exist in classic SEO or AEO at all:
| GEO check | What it verifies |
|---|---|
| AI crawler access | robots.txt doesn't block GPTBot, ClaudeBot, PerplexityBot, or similar |
| AI-readable content | Main content exists in the raw server-rendered HTML, not injected later by JavaScript |
| Structured citable content | JSON-LD that identifies who the site belongs to (Organization, Person, etc.) |
| Backlink authority | Whether other established sites already vouch for this one — a trust signal, not a code fix |
How do the three fit together in practice?
They're not competing checklists — a single page can be audited against all three at once, and the overlap is large. A page that's properly indexable, fast, and well-structured (SEO) is most of the way to having a citable direct answer (AEO), and if its robots.txt doesn't block AI crawlers and its content is server-rendered (GEO), it's covered on all fronts. The failure mode is usually a gap in exactly one axis — most often GEO, since AI crawler access and server-rendering are newer concerns most sites never audited for.
See how a single audit scores all three at once with HellSEO's free AI Crawler Checker, or run a full audit for the complete 24-check breakdown across all three axes.
Frequently Asked Questions
Do I need to choose between SEO, AEO, and GEO?
No — they overlap heavily. A well-structured page with clean headings, fast load times, and real content typically scores well on all three at once. The checks diverge mainly around AI crawler access and question-based content structure.
Which one should a small business prioritize first?
SEO fundamentals first — indexability, title tags, HTTPS, a working sitemap — since those are prerequisites for AEO and GEO too. An AI system can't cite a page Google can't even index.
Can a page score well on SEO but fail GEO?
Yes. A page can rank fine on Google while blocking every major AI crawler in robots.txt, or rendering its content entirely client-side in JavaScript that AI crawlers can't execute — both invisible to Search but fatal to GEO.
Is GEO the same as 'answer engine optimization'?
No — they're related but distinct. AEO is about content structure (direct answers, FAQ format, question headings) that gets a snippet quoted. GEO is broader: it also covers AI crawler access, server-rendering, and backlink authority signals AI systems use to decide what to trust enough to cite.
Related Free Tools
Related Posts
Do Question-Based Headings Actually Help AI Cite You?
The SMB Owner's Guide to Not Getting Buried by AI Search