SEO works to get your pages ranked in search result lists, while GEO works to get your business named and your pages cited inside the answers that ChatGPT, Claude, Gemini and Perplexity write. Most small businesses need both, and the order matters: GEO stands on SEO's foundations of crawlability, indexing and useful content, so fix those first, then publish pages that answer the questions your buyers ask assistants.
The rest of this page covers where the two overlap, where they split, and what we would do first on a limited budget. We put buyer questions to four assistants every week, so the examples below come from our own logs and test runs, with their dates.
What do SEO and GEO each actually do?
SEO: earning a place in a ranked list
SEO is the work of getting a page to rank for a query in Google or Bing. Its strengths are maturity and measurability: you can see positions, impressions and clicks, and a good ranking sends visitors to your site. Google also says the same basics carry over to its AI features. Its guidance on AI Overviews and AI Mode tells site owners to apply the same foundational SEO practices as for classic Search: meet the technical requirements, follow Search policies, and create helpful, reliable, people-first content.
The limit is that a Google ranking does not carry over to other assistants automatically. On 19 October 2026 we asked assistants for the exact titles of 18 articles, each older than three weeks, published on three client sites. ChatGPT found 1 of 18 and Claude found 7 of 18, while Google had indexed 29 of 30 articles on one of those sites. Being in Google's index did not mean an assistant could find the page.
GEO: being named inside the answer
Wikipedia describes generative engine optimization, also called AEO or AIO, as improving a page's visibility inside answers written by generative AI systems rather than in ranked result lists. The strength is reach at the moment of decision: when a buyer asks an assistant who to hire or which tool to pick, the answer names a few businesses and nobody scrolls to page two. Some of our clients report results from this. FreightSizer, a B2B SaaS for freight dimensioning, reported 2 new B2B customers in one month, both from ChatGPT; appslift, an app store optimisation service, reports 2 to 5 leads a month from AI assistants (both as reported by the clients, October 2026).
The limits are real too. Assistants rarely send a click: in about two weeks of logs from three of our course websites, roughly 1.2 million requests in the two busiest logs, we counted one human visitor arriving from Copilot and zero from ChatGPT, Perplexity, Gemini, Claude and Meta AI. Assistants mostly answer in place. Nobody can guarantee that an assistant will name a business, and anyone who promises it is promising something they do not control.
Where do GEO and SEO overlap?
The overlap is the foundation, and it is larger than most GEO marketing admits.
Crawlability. If a crawler cannot fetch your page, neither a search engine nor an assistant can use it. AI crawlers are already busy: across the full retained nginx logs of pickaclass.com, an edtech platform we work with, from 28 July to 11 August 2026 we counted 19,272,125 requests from ClaudeBot, 2,744,985 from GPTBot and 52,292 from Googlebot. We also made the classic mistake ourselves. A robots.txt rule on our own site, meant to hide a single redirect page (/b), was written as a prefix. Because robots.txt rules match prefixes, from 11 August to 21 October 2026 it also closed /blog, /business and every article in our business blog to all crawlers. We changed the rule to /b$ on 21 October 2026. If you are unsure about your own file, read whether your website is blocking GPTBot, ClaudeBot and PerplexityBot.
Indexing. The same mistake showed up as indexing damage: Bing Webmaster Tools had listed our business page as "discovered but not crawled" since 11 August 2026, and Google had none of the business pages indexed. Sitemaps, Google Search Console, Bing Webmaster Tools and IndexNow are classic SEO chores that GEO depends on. Our piece on whether ChatGPT uses Bing and whether you need IndexNow goes through that question.
Content. Both reward pages that answer a real question clearly. One finding from our work: surface beats markup. A site with complete markup (server rendering, Article, FAQPage and Organization JSON-LD, a sitemap) but only 75 URLs was still absent from answers on its own article's exact topic, while a site with about 190,000 crawlable URLs was crawled constantly. Markup is hygiene; the number of useful pages that answer buyer questions does more.
Where do GEO and SEO differ?
Answers instead of rankings
A search engine returns a list, and position seven still exists. An assistant writes one answer from a small set of sources. Perplexity, for example, does not pass every retrieved document to its model; according to this analysis of how Perplexity chooses sources, a separate filtering and ranking phase narrows candidates into a bounded search context before the answer is written. You are either in that context or you are not.
Often there is no search at all. In a 23 September 2026 test of 20 German business questions, the model answered 10 without searching and cited nobody. Firms were named only on "who should I hire / how to choose" questions.
Cited sources instead of blue links
When an assistant does search, it shows where its answer came from. Anthropic's documentation states that with the web search tool enabled, Claude's response includes citations for sources drawn from the results it retrieves. Who gets cited is not always who ranks. In our 23 September test, where the model searched, it cited primary sources such as laws, ministries, the OECD and large accounting firms on 9 of 10. For an orthopaedic practice in Bonn on 20 October 2026, the directory jameda.de was cited in 12 answers and competing practices' own websites were the most cited sources. The practice itself was named in 12 of 80 answers, and only "who to choose" questions named practices at all.
Measurement
SEO has stable positions. Assistant answers vary: asked the same question three times, an assistant often names different businesses, and in our German test two runs of the same question named two different sets of firms. So we count a business as named for a question if any of three asks names it, and we compare weeks only on the same questions and the same number of asks. Clicks are a poor signal, as shown above. A better one sits in your server logs: live retrieval agents such as ChatGPT-User, OAI-SearchBot and Perplexity-User fetch a page while an assistant is answering a real person. In one fortnight the edtech platform received 1,918 such fetches on content pages; a client blog of a few dozen articles received 56 across 24 different articles.
| Aspect | SEO | GEO |
|---|---|---|
| Goal | Rank a page for a query | Get the business named and pages cited in an answer |
| Where you appear | Ordered list of results | Inside one written answer, often with a few cited sources |
| What gets shown | Your page, by position | Primary sources, directories, competitors' sites, vendor blogs |
| Searching | Every query hits the index | The model may answer without searching and cite nobody |
| Consistency | Positions fairly stable day to day | Same question can name different businesses each time |
| Main signal | Positions, impressions, clicks | Share of answers naming you; live retrieval fetches in logs |
| Traffic | Clicks to your site | Few clicks; the answer is given in place |
| Shared base | Crawlability, indexing, useful content | The same, plus Bing and AI crawler access |
What mistakes come from treating GEO as SEO with a new name?
- Assuming Google's index covers everything. Our 19 October 2026 title test showed it does not.
- Judging success by referral traffic. With near-zero clicks from assistants, traffic reports will tell you GEO failed even when you are being named.
- Polishing markup on a tiny site. The 75-URL site with perfect JSON-LD stayed invisible on its own topic.
- Checking once and concluding. One ChatGPT answer is a sample of one; ask several times, across several assistants.
- Writing only for informational keywords. Questions about costs, risks and how things work tend to cite primary sources or name nobody. The "who should I choose" and comparison questions are where businesses get named.
- Forgetting that robots.txt rules are prefixes. One short rule can close a whole section of a site for months, as it did for us.
Do I need both, and what should a small business do first?
Yes, but not as two separate budgets. Treat SEO hygiene as step one of GEO:
- Open the doors. Check robots.txt, firewall and CDN settings so Googlebot, Bingbot, GPTBot, ClaudeBot and PerplexityBot can fetch your pages.
- Get indexed in Google and Bing. Submit sitemaps, verify both webmaster tools, and use IndexNow so new pages are announced.
- Take a baseline. Write down 20 questions your buyers would ask, put each to ChatGPT, Claude, Gemini and Perplexity three times, and record who is named and which sites are cited. At October 2026 API prices, a report of 20 questions x 4 assistants x 3 asks costs us about $5.40. Our guide on how to check whether AI assistants mention your business shows the method. Do not be discouraged by a zero: on 21 October 2026 we were named in 0 of 160 answers to our own questions, which we wrote up in we checked our own AI visibility.
- Publish answers on your own domain. One page per buyer question, especially "how to choose" and comparison questions, and keep adding pages so the surface grows.
- Re-measure on the same questions. Watch logs for live retrieval fetches and compare weekly counts like for like.
If you want a quick read before doing any of this, the free check at ItGrows generates five buyer questions from your homepage and shows in about 30 seconds whether ChatGPT and Perplexity name you. ItGrows also does the full routine as a service, for $499 a month (plus a one-time $499 setup, free with 3 months or a year): articles on your domain, crawler and indexing fixes, and weekly measurement across four assistants, three asks per question. It does not guarantee you will be named.
Frequently Asked Questions
Is GEO replacing SEO?
No. Google's own guidance says the same foundational SEO practices apply to its AI features, and every assistant still needs to crawl and retrieve your pages. GEO adds a different goal and a different way of measuring on top of that base.
Can I do GEO without doing SEO?
Not in any useful way. If crawlers are blocked or your pages are not indexed, there is nothing for an assistant to retrieve or cite. Our own robots.txt mistake from 11 August to 21 October 2026 closed our blog to every crawler, search and AI alike.
How long until an assistant names my business?
Nobody can promise a timeline, because the assistant decides. What you can track is progress: whether live retrieval agents start fetching your pages and whether citations appear. In our weekly measurement of 20 October 2026, for example, Perplexity cited an article we had published on a client's site, a German company-formation advisory.
Will AI assistants send me traffic the way Google does?
Usually not much. In about two weeks of logs from three of our course websites we counted one human visitor from Copilot and none from the other assistants. Measure how often you are named and cited, and ask new leads where they heard of you.