GEO vs SEO: What’s the Difference and Do You Need Both?

SEO (search engine optimisation) improves how your website ranks in traditional search results, while GEO (generative engine optimisation) improves how your brand and content are found, understood and cited in AI-generated answers from tools like ChatGPT, Google AI Overviews, Gemini and Perplexity. The two overlap a lot, because AI systems often lean on the same crawlable, trusted content that ranks well in search. Most businesses need both, with SEO underneath and GEO built on top.

What is SEO?

SEO is the work of improving your website so it appears higher in organic results for the searches your customers make. It is a well-established discipline with three broad parts.

• Technical SEO. Making sure search engines can crawl, render and index your site, and that pages load quickly and work well on mobile.
• Content and on-page SEO. Pages that match what people are searching for and answer their questions properly, with sensible headings.
• Authority. Links, mentions and a reputation that tell search engines your site can be trusted.

SEO gets you into a list of results. A searcher sees your page, clicks through and, with luck, becomes a customer. You measure it in rankings, impressions, clicks and conversions, and most of that can be tracked fairly precisely in Google Search Console and your analytics.

What is GEO?

Generative engine optimisation is a newer term for improving visibility in AI-generated answers. The phrase gained traction after an academic paper in 2023 used it to describe ways content might be made more likely to be cited by generative search systems. It is now commonly used, alongside terms like AI search optimisation and answer engine optimisation, to describe the work of helping AI tools find, understand and represent your brand accurately.

Generative engines do not hand you a list of blue links. They write an answer, often drawing on several sources, and may or may not link to them. Some rely mainly on what the model learned in training, others search the web in real time and summarise what they find, and many do both.

GEO usually has three aims.

• Being cited or linked as a source in AI-generated answers.
• Getting your brand named when people ask for recommendations in your category.
• Making sure AI tools describe your business and what you sell correctly.

How GEO and SEO differ

The two share most of their groundwork. Where they part ways is in what they aim for, where the results show up and how you measure them.

Clicks versus answers

The biggest practical difference is what happens after someone searches. In traditional search, the user chooses which result to click. In an AI answer, the system has already chosen which sources to draw on and what to say. Your brand might be named without a link, linked without being named, or left out entirely. So some of the effort moves away from ranking one page and towards becoming a source AI systems trust on the topic.

Your site versus the wider web

SEO focuses heavily on your own website. GEO pays more attention to how your brand is described elsewhere, because AI tools often synthesise information from many sources. Reviews, directory listings, editorial coverage and community discussion can all influence how you are represented.

Where GEO and SEO overlap

It is easy to overstate the differences. Most of what makes a site do well in traditional search also helps it appear in AI answers. Google has said its AI Overviews rely on the same fundamentals as Search, with no special optimisation required. AI tools that search the web pull pages from search indexes, and those indexes favour well-built pages from trusted sites.

The shared groundwork looks like this.

• Crawlability and indexing. If search engines and AI crawlers cannot access your content, neither discipline works.
• Helpful, people-first content. Accurate pages that actually answer the question count in both.
• Expertise and trust. Showing real experience and credentials helps rankings and makes you more likely to be treated as a reliable source.
• Authority. Links and mentions from respected sites help with rankings and with how widely your brand is recognised.
• Structure. Descriptive headings, answer-first writing and well-organised pages help both search engines and AI systems understand content.

So GEO is best treated as an extension of good SEO rather than a replacement. A business with weak SEO is unlikely to do well in AI answers either.

What GEO adds on top of SEO

GEO does bring some work of its own, mostly in five areas.

Entity clarity

AI systems try to understand your business as an entity: what it is called, what it does, where it operates and how it relates to other things. Clear, consistent descriptions across your website, profiles and listings, supported by accurate structured data, make that easier.

Brand mentions as well as links

Traditional link building chases links that pass authority. For AI visibility, a mention of your brand in the right context can count even without a link, because it affects how often your name gets connected with a topic. A trade magazine quoting your managing director on a new regulation is a good example.

Extractable answers

Content that states facts clearly and still makes sense when lifted out of the page is easier for AI tools to summarise accurately. Put the answer first, define terms in everyday words and cut vague marketing language.

AI crawler access

Different AI providers use their own crawlers. For example, OpenAI uses OAI-SearchBot for ChatGPT search, separate from GPTBot, which collects training data. Many traditional SEO audits never check which of these crawlers your robots.txt and security settings (a firewall or CDN bot filter, for instance) are letting through.

Monitoring how you are described

GEO includes checking what AI tools say about your business and fixing the sources behind any wrong information, such as an old directory listing or an About page that still lists a service you dropped.

Do you need both?

For most businesses, yes, though not in equal measure and not as two separate projects. The balance depends on how your customers search and make decisions.

• Local service businesses still get much of their search demand through Google’s local results and maps. SEO, particularly local SEO, should remain the priority, with GEO focused on consistent business information and reviews.
• B2B and professional services often serve buyers who research, compare and ask detailed questions. AI tools are increasingly part of that research, so a stronger GEO focus on expertise, comparisons and brand reputation can make sense.
• Ecommerce depends heavily on product and category rankings, so SEO remains central. GEO helps with product recommendation queries and with making sure product information is clear and consistent.
• Publishers and information sites may feel the effect of AI answers on clicks most directly, and need to offer something a summary cannot, such as original data, tools or opinion.

Signs GEO deserves more attention now

Any of the following suggests AI visibility should get a bigger share of your effort.

• Customers mention that they asked an AI assistant before contacting you, or that it recommended a competitor.
• AI tools describe your business wrongly, with old services or the wrong location.
• You already rank reasonably well in Google, but competitors are named in AI answers and you are not.
• Your buyers make considered, high-value decisions where they research and compare options at length.
• Referral visits from AI platforms are starting to appear in your analytics.

If your SEO is weak, fix that first. Technical problems, thin content and a lack of authority will hold you back everywhere. Once that is sorted, GEO work usually slots into the existing search budget rather than needing a new line of its own.

How to combine SEO and GEO in one strategy

Fold GEO into your existing search work rather than running it as a separate channel. We would usually go in this order.

1. Audit your foundations. Check crawlability, indexing, site speed and technical health, including whether AI crawlers can access your site.
2. Map customer questions. List the questions people ask at each stage of choosing a business like yours, from early research to final comparison.
3. Check both kinds of visibility. For your priority questions, look at where you rank in Google and what AI tools say. Note which sources are cited.
4. Strengthen your core pages. Make service, product and About pages specific and answer-first, so they work for searchers and AI systems alike.
5. Fill content gaps. Create content that answers important questions you do not yet cover, with real expertise and detail.
6. Align your entity information. Make your business name, description, services and locations consistent across your site, profiles and listings, supported by accurate structured data.
7. Build authority and mentions. Invest in digital PR, reviews, partnerships and expert contributions that earn both links and brand mentions.
8. Measure and adjust. Track SEO with established tools and GEO with regular prompt testing, referral traffic and brand search trends. Review quarterly.

If you are not sure where your gaps are, a digital marketing audit can establish a clear baseline across both.

Measuring SEO and GEO together

SEO measurement is mature. Search Console shows impressions, clicks and positions, analytics shows what visitors do, and rank tracking shows movement over time. Google has said traffic from its AI features is included in Search Console’s overall Web performance data, though it is not reported separately.

GEO measurement is rougher. These four methods give a reasonable picture between them.

• A fixed set of prompts tested regularly across the AI tools your customers use, noting each time if you are mentioned and how you are described.
• Referral traffic from AI tools such as chatgpt.com and perplexity.ai in your analytics.
• Trends in branded searches, which can rise when more people encounter your brand in AI answers.
• Asking new customers how they found you, including AI assistants as an option.

Tie all of it back to enquiries and sales, since visibility that brings in no business is not worth much. Our guide on how to set marketing goals can help you decide what success should look like.

Common misconceptions

• “SEO is dead.” AI answers draw heavily on content that search engines can find and trust. SEO is evolving, not disappearing.
• “GEO is SEO with a new name.” There is a lot of overlap, but entity clarity, brand mentions and AI crawler access need their own attention.
• “You need a special file or markup for AI.” Google says no special markup is needed for AI Overviews. Proposed standards such as llms.txt exist for other AI tools, but none has been shown to win visibility on its own.
• “AI citations can be bought or promised.” No one controls what AI tools say, so be wary of anyone promising you a set number of citations.
• “You should write for AI, not people.” Content written for real readers, clearly and accurately, is what both search engines and AI systems are trying to surface.

Running search and AI visibility as one plan

SEO and GEO are not competing choices. SEO earns your place in search results, and GEO helps that place carry through into AI-generated answers. Both depend on pages crawlers can reach, content that helps people, and a good reputation on other sites, so one plan with one set of priorities is usually the sensible way to run them.

We usually start by checking where a business stands in Google and in the main AI tools, then work on both from the same plan. Our SEO services cover the groundwork, our generative engine optimisation work carries it into AI search, and an AI visibility strategy ties the two together.

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