# GEO vs SEO vs AEO: How Each Is Different & Why They Matter
SEO, AEO, and GEO explained: what each one optimizes, where they overlap, the six ways GEO and AEO differ from SEO, and where to start.
**Published:** March 31, 2026
**Author:** Kate Starr & Megan McDonough
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Your CEO or founder has asked what you’re doing about GEO, but you already have an SEO strategy in place. The question is how much of that strategy needs to change.
Most GEO and AEO tactics overlap with the SEO work you’re already doing. The outcomes are quite different though, and that changes what you need to measure.
If you’re deciding whether to hire a GEO specialist, retrain your SEO team, or ignore this new acronym for now, start here. This article breaks down SEO, AEO, and GEO. You’ll learn where they overlap, where they differ, and how to go about your search strategy moving forward.
## What’s the difference between SEO, AEO, and GEO and what do they stand for?
**SEO** focuses on making your website and content more visible in traditional search results and relies on content relevance, site structure, backlinks, and technical performance.
**AEO** focuses on structuring content so search engines and AI systems can select it as a direct answer, rather than simply ranking it on a results page.
**GEO** applies similar optimization principles to generative search. The term was introduced in a 2024 paper by [researchers from Princeton University and Georgia Tech](https://collaborate.princeton.edu/en/publications/geo-generative-engine-optimization/), which examined methods for improving a website’s visibility in generative engine responses.
| | SEO | AEO | GEO |
| :---- | :---- | :---- | :---- |
| **What it stands for** | Search Engine Optimization | [Answer Engine Optimization](https://www.searchable.com/blog/what-is-aeo) | Generative Engine Optimization |
| **Where the result appears** | Traditional Search Engine Results Pages (SERPs) | Featured snippets (Position Zero), voice assistants, and “People Also Ask” boxes | AI-generated responses across conversational AI platforms like ChatGPT, Perplexity, Gemini, and Google AI Overviews |
| **What it optimizes** | Web pages, site structure, and content for search engine crawlers | Content structure, so it’s suitable for direct answers, entities, and Knowledge Graphs | Deep topical authority, brand narrative, and context for large language models (LLMs) |
| **Primary signal** | Quality content, E-E-A-T, topical authority, backlinks, and technical performance | Thoroughly answered questions and clear content structure that makes it easy to sift through | Citation optimization and multi-platform visibility (including third-party publications) |
| **How you measure it** | Traditional organic rankings, click-through rates, and organic traffic growth | Selection as the direct answer (featured snippets or voice search) | Probabilistic measurement through iterative testing, monitoring citation frequency, and tracking AI referral traffic |
| **Who owns it internally** | SEO Manager | Technical SEO, Content Strategist | PR, Brand Marketing, Head of Content |
## How much of GEO is just good SEO?
Most of GEO is built on the same fundamentals as SEO, including quality content, E-E-A-T signals, topical authority, clear structure, and content freshness. These elements can help both search and AI engines to find, understand, and trust your content.
[An analysis of SEO pioneer Greg Boser’s take on AI search](https://www.businesstechweekly.com/technology-news/seo-pioneer-greg-boser-debunking-myths-about-googles-ai-search-evolution/) puts it this way: *“The core principles of implementing effective technical SEO fundamentals remain relevant, though the implementation may need adjustment.”*
Strong SEO can support AI visibility, but it doesn't guarantee it.
While Google ranking is a useful predictor of which pages appear as sources in Google AI Overviews, ranking alone doesn’t explain every citation. [A March 2026 study of 863,000 keywords](https://ahrefs.com/blog/ai-overview-citations-top-10) found that only around 38% of AI Overview citations come from pages in the top 10 Google results.
## 6 ways GEO and AEO genuinely differ from SEO
GEO and AEO build on SEO fundamentals, but they add requirements around [how AI answer engines source content](https://www.searchable.com/blog/ai-answer-engines-vs-traditional-search). This is particularly relevant as brands begin exploring [LLM SEO](https://www.searchable.com/blog/llm-seo) strategies.
Where GEO and AEO differ from SEO comes down to six elements:
### 1. Citation optimization: get named as the source, not just ranked
SEO focuses on getting pages to rank in search results. GEO and AEO add another goal: getting those pages selected and cited as sources in AI-generated answers.
A page can rank well organically and still not appear in AI-generated answers. GEO therefore puts more emphasis on whether an answer engine can find, understand, and cite the information on your page. Clear claims, supporting evidence, and source-worthy content all make that easier.
**What to do:** Review your core pages and make each important claim specific, self-contained, and easy for an answer engine to cite.
### 2. Multi-platform visibility: every engine returns a different answer set
SEO focuses on visibility in search results, while GEO tracks [brand mentions in AI answers](https://www.searchable.com/blog/tracking-brand-ai-responses) across multiple answer engines that can draw on different sources.
ChatGPT, Google AI Overviews, Perplexity, and other answer engines don’t necessarily retrieve the same sources or mention the same brands.
A page that performs well in one platform can have limited visibility in another, because each engine can use different sources and retrieval systems. So, optimizing for one channel doesn't give you a complete picture.
**What to do:** Check your priority topics across the answer engines your buyers use and record which brands and sources appear consistently.
### 3. AI visibility measurement: there’s no rank to track
SEO gives you relatively stable positions to monitor, while AI-generated answers can change between runs, even for the same prompt.
That makes a single position an unreliable basis for [AI visibility tracking](https://www.searchable.com/blog/ai-visibility-tracking). Instead, you need repeated prompts, consistent tracking, and enough observations to identify trends rather than treating one generated answer as a fixed result.
**What to do:** Run the same priority prompts from a logged-out LLM at least three times and track:
- whether your brand appears
- where it appears
- and whether it gets cited
### 4. Consensus signals: one strong page isn’t enough
SEO can concentrate authority around a specific page, whereas GEO benefits from consistent information about your brand across multiple relevant sources.
Answer engines can combine information from several pages and domains when forming a response. If your website says one thing while reputable third-party sources describe your company differently, the engine might consider you unreliable. Consistent facts across your site and external sources give answer engines clearer information to work with.
**What to do:** Search your brand across your site and major third-party sources, including your industry directories and review sites. Then fix outdated or conflicting information.
### 5. Third-party presence: Reddit and review sites carry your brand
SEO has traditionally focused heavily on your own website and the links pointing to it. GEO also requires paying attention to where other people discuss and describe your brand.
Answer engines use third-party discussions, reviews, forums, and other sources when answering questions about products and companies. For example, our [Google AI Overviews citation data](https://www.searchable.com/data/google-ai-overviews-citations) shows YouTube (about 37%) and Reddit (about 21%) among the most-cited domains.
Your website can’t control most of those conversations, but you can monitor what information is available and address the gaps or inaccuracies.
**What to do:** Search your brand on the third-party sites that influence your category and note the questions, comparisons, and descriptions that appear most often.
Or use Searchable’s [LLM citation tracking](https://www.searchable.com/features/aeo-insights/sources) to find the sources AI trusts in your category.
### 6. Query length: prompts run far longer than keywords
SEO often starts with short keywords, while AEO and GEO rely on longer, conversational prompts that include context, constraints, and multiple requirements.
For example, a buyer might search Google for “CRM for startups,” but ask an answer engine for several CRM options for a 20-person SaaS company with a specific budget and integration needs. That longer prompt changes which information matters, because the engine has to find and weigh information against several conditions at once.
**What to do:** Build prompt variations around your core topics, adding the audience, use case, constraints, and comparison criteria your buyers care about. Then cover those questions in your content.
## How to tell real AEO and GEO tactics from snake oil
As AI search gains traction, more marketers are promoting tactics that promise to improve visibility in AI-generated answers. The challenge is separating strategies with a clear mechanism and evidence from tactics that mainly rely on hype.
A credible AEO or GEO strategy should explain what it’s changing, how success will be measured, and what evidence supports the approach.
John Mueller, Google’s Search Advocate, has [said that search is never guaranteed](https://www.searchenginejournal.com/googles-john-mueller-search-is-never-guaranteed/470388/), and Google’s own guidance warns that [no one can guarantee a #1 ranking](https://developers.google.com/search/docs/fundamentals/do-i-need-seo). The same limitation applies to AI-generated answers.
At minimum, a marketer promising guaranteed citations or mentions should be able to explain what they can actually control and how they'll measure the result.
When you evaluate an AEO or GEO strategy, use these guidelines:
## Where to start with GEO and AEO: a three-tier plan
Start with your existing SEO foundation, then make your content easier for search engines to find, understand, and cite. Finally, measure whether those changes are increasing your visibility.
We created this three-tier approach you can follow to help integrate GEO and AEO into your existing SEO strategy:
### Tier 1: Audit your technical SEO foundation
First, check whether search engines and AI crawlers can access the pages you want them to find.
Review your robots.txt file, indexing status, internal links, canonical tags, and JavaScript-rendered content. Then fix any pages that aren’t accessible or indexable.
A strong technical foundation gives both traditional search engines and AI systems a better chance of discovering your content. If your most important pages can’t be crawled or indexed, optimizing the content on those pages won’t help.
### Tier 2: Review your content for citation-worthy answers
After you've established a solid technical foundation, pick your most important pages and check whether they answer the questions your audience actually has.
Answering yes to the following questions can help you [increase AI search citations](https://www.searchable.com/blog/increase-ai-search-citations):
- Does the content provide clear, concise definitions?
- Does it give direct answers to your audience’s questions?
- Does it support claims with reliable, verified evidence?
- Does it include relevant examples?
- Can key passages stand on their own when extracted out of context?
**Pro tip:** Prioritize optimizing the pages that already generate a decent amount of organic traffic or business value.
### Tier 3: Measure your visibility and iterate
Finally, build a prompt set based on the questions your buyers are asking in AI engines and track how often your brand appears in the answers.
Track:
- Which prompts produce mentions or citations
- Where your brand appears
- Which sources answer engines use alongside your content
You can test a few prompts manually, but variations between platforms and individual runs make manual tracking unreliable at scale. Instead, use Searchable’s [AI visibility analytics](https://www.searchable.com/features/aeo-insights/visibility) to track your brand across nine AI platforms at once.
## Frequently asked questions about GEO, SEO, and AEO
## Ready to build your GEO & AEO strategy?
[Terms like GEO, AEO, and LLM SEO](https://www.searchable.com/blog/ai-search-glossary-2026) will continue to shift and evolve as we go. However, the core principles driving results stay the same.
To get chosen by AI engines, your brand's content should be high-quality, have a clear structure, topical authority, and credibility signals.
If you’re ready to elevate your GEO and AEO strategy, our [AI search optimization guide](https://www.searchable.com/blog/ai-search-optimisation-guide) is a good place to start.
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