GEO vs SEO
GEO vs SEO: two different systems,
two different strategies
SEO gets you found on Google. GEO gets you cited by ChatGPT, Perplexity, and Google AI. They use different signals, reward different things, and require different work. Here's the full picture.
What is the difference between GEO and SEO?
SEO works to rank a page in Google's list of links. GEO works to get a business named and cited inside the answer an AI tool writes.
Both start from the same place, a site that search engines can crawl and understand. They part company at the finish line. SEO is measured in positions and clicks. GEO, generative engine optimisation, is measured in mentions and citations: does ChatGPT, Perplexity, Gemini or a Google AI Overview name you when a buyer asks for a recommendation? The two definitions below set out what each one optimises for.
SEO: Search Engine Optimization
The practice of optimising a website to rank higher in Google search results. When someone types a query into Google, SEO determines whether your page appears in the list, and how high.
Primary signals
- ·Keyword relevance and placement
- ·Backlinks from other websites
- ·Page speed and Core Web Vitals
- ·Technical site health
- ·Domain authority over time
Result
A ranked position in a list of links. The user still has to click, compare, and decide.
GEO: Generative Engine Optimization
The practice of structuring a business's online presence so AI systems, ChatGPT, Perplexity, Google AI Overviews, cite it when users ask relevant questions. GEO determines whether your business is named in the answer.
Primary signals
- ·Schema markup and structured data
- ·Entity consistency across all sources
- ·Question-answering content (FAQs)
- ·Third-party mentions and reviews
- ·Topical authority in a defined niche
Result
A named recommendation with reasoning. The buyer arrives pre-sold on your business.
How do GEO and SEO compare side by side?
They share the technical foundations but differ in target, output, signals and measurement. The table sets out GEO vs SEO factor by factor.
| Factor | SEO | GEO |
|---|---|---|
| Also called | Search engine optimization, organic search | AI SEO, answer engine optimization (AEO), LLM SEO |
| Target system | Google, Bing search index | ChatGPT, Perplexity, Gemini, Google AI Overviews and AI Mode |
| Output | Ranked list of URLs | Named recommendation with reasoning |
| User action required | Click, compare, decide | Often acts on the recommendation directly |
| Primary technical signal | Keywords + backlinks | Schema markup + entity consistency |
| Content format | Long-form keyword-rich pages | Question-answering, FAQ-structured content |
| How success is measured | Positions, impressions and clicks in Search Console | Mentions and citations for a fixed set of buyer prompts |
| Time to first result | Usually months for competitive terms | Can be weeks once pages are indexed (Shamrock: 1 of 10 buyer questions in April 2026, first of five retailers in ChatGPT by June) |
| Competition level | High in most niches | Lower today, because fewer businesses work on it yet |
| Ongoing requirement | Continuous link building, content | Maintenance after initial implementation |
| Local business benefit | Moderate, local SEO is competitive | High, AI is built to answer local queries |
Is SEO dead now with AI?
No. AI search answers still draw on pages that search engines crawl and index, so SEO foundations remain the entry ticket to being cited.
Google says as much. Its guidance on AI features and your website states that appearing in AI Overviews or AI Mode needs no extra requirements or special optimisations, and no new machine-readable files. The same technical requirements, Search policies and helpful, people-first content that make a page eligible for ordinary results are what make it eligible for AI answers. A site that is slow, blocked from crawling or thin on content is invisible to both.
What has changed is what happens once the page is found. A ranked link is no longer the only prize: the answer itself may name a business, and whether it names yours depends on how clearly your pages say who you are, what you do and who you serve. So SEO is not dead, it is the floor. GEO is the work that sits on top of it, which is why the FAQ below says good SEO does not automatically mean good GEO.
Do you need both GEO and SEO?
In the long run, yes. Traditional search and AI search are complementary channels and a business that does both well has maximum visibility. But most businesses have to sequence their investment, and the question of which to do first matters.
If you have no online presence at all: foundational SEO first. A well-structured website with basic on-page optimisation is the prerequisite for almost everything else.
If you have a functional website and some organic traffic: GEO is the higher-priority investment right now. Google already showed an AI Overview on 60 of the 72 AI consulting searches we checked across six countries on 13 September 2026. Competition for AI citations is far lower than for Google rankings. The first-mover advantage is still available in most niches, but it won't be for long.
If you're in a competitive Google niche: GEO may deliver faster results. Building Google domain authority in a saturated niche takes years. Achieving AI citations in the same niche often takes weeks, because AI search is still less contested.
The good news: GEO work often helps SEO too. Schema markup, structured FAQ content, and entity consistency are all signals that Google's own systems value. The two disciplines overlap more than they compete.
Why does the timing matter?
60 of 72
AI consulting searches in six countries that showed a Google AI Overview (our DataForSEO check, 13 Sep 2026)
First of five
Shamrock Electrical among retailers in ChatGPT by June 2026, after schema and FAQ content went live, up from 1 of 10 buyer questions in April
KD 14
US keyword difficulty for "generative engine optimization agency", out of 100 (DataForSEO, 19 Sep 2026): few firms compete for it yet
The businesses that establish AI citation presence now will be harder to displace as the channel matures. The parallel is early Google SEO: the businesses that invested in 2005 still benefit from that head start.
What is SEO for AI called?
Usually generative engine optimization, or GEO. AI SEO, answer engine optimization (AEO) and LLM SEO are other names for closely related work.
The term GEO comes from a 2023 research paper, GEO: Generative Engine Optimization, by researchers at Princeton and collaborators, which tested how changes to web content affect whether generative search engines cite it. AEO is older and grew up around featured snippets and voice assistants, where the goal was to be the one answer read out. AI SEO is the plain-English label many buyers type.
The labels differ, the job is the same: be the source an AI answer draws on and names. How AEO and GEO relate is set out in AEO vs GEO, and if you want the work done for you, see our generative engine optimization agency page.
Common questions
Does good SEO automatically mean good GEO?
No. Businesses with strong Google rankings regularly have near-zero AI citation presence. The signals that drive Google rankings, keyword-matched backlinks, page speed, technical SEO, are not the primary signals AI systems use. A business needs to invest in GEO separately.
Will my current SEO agency understand GEO?
Most traditional SEO agencies are still catching up with GEO. The disciplines share some vocabulary (structured data, content quality) but the implementation details are different. Schema types that matter for AI citation, entity consistency requirements, and FAQ content structure are specialised knowledge that most SEO agencies acquired recently if at all.
Is GEO just for big businesses?
No. GEO is particularly effective for SMEs. Local and niche businesses are exactly what AI tools are trained to recommend for specific queries. A trades business, professional services firm, or specialist ecommerce store can achieve AI citations faster than a large brand competing in saturated categories.
How long does GEO take to show results?
It varies with the category and how well the site is already indexed. Shamrock Electrical, a business we run for its owner, went from being named in 1 of 10 buyer questions in April 2026 to first of five retailers in ChatGPT by June, after schema and FAQ content went live. Treat that as one real example, not a promise; our GEO programmes carry a 90-day citation guarantee instead.
What is SEO for AI called?
Most often generative engine optimization (GEO). You will also see AI SEO, answer engine optimization (AEO) and LLM SEO. The names overlap: all describe getting a business found, named and cited in AI-generated answers rather than only ranked in a list of links.
Is AI SEO different from traditional SEO?
Yes, in what it measures. Traditional SEO is judged on rankings and clicks. AI SEO, or GEO, is judged on whether ChatGPT, Perplexity or Google AI name and cite the business. The foundations, a crawlable site with useful content, are shared.
Will AI replace SEO?
Not on current evidence. Google says pages need no special optimisation to appear in AI Overviews or AI Mode beyond being indexed and eligible for ordinary results, so SEO remains the entry ticket. What AI changes is the prize: being named in the answer, not only ranked below it.
What is generative engine optimization?
Generative engine optimization (GEO) is the practice of structuring a business's online presence so that AI search tools, ChatGPT, Perplexity, Google AI Overviews, cite it when users ask relevant questions. GEO involves schema markup, structured content, entity consistency, and authority signals specifically designed for how large language models learn and recall business information.
Find out where you stand today
The free AI Visibility Check tests whether your business is currently being cited by ChatGPT, Perplexity and Google AI, and identifies exactly what's missing.