An \SEO service\ improves how easily a business website can be found, understood and trusted by search engines, so that it appears when potential customers search for its products or expertise. A \GEO service\, short for generative engine optimisation, extends that work to AI-generated answers, where tools such as Google's AI Overviews and AI Mode, ChatGPT and Perplexity name sources and brands directly inside a written response.
Search once meant a ranked list of ten links. A single results page can now carry a written answer, a few cited sources and the familiar links below. Pew Research Center's 2025 analysis of Google browsing found that people clicked a traditional result in 8% of visits when an AI summary appeared, compared with 15% when none did.
That shift does not make the \search engine optimization service\ obsolete. It widens what the work has to cover. Crawling, content and links still matter, but brands now also need someone watching how AI systems describe them, and whether those systems cite them at all.
What Does an SEO Service Actually Do?
A good \SEO service\ is less about "ranking for keywords" and more about removing the reasons a customer cannot find a brand. Those reasons usually fall into three groups: the site is hard for search engines to process, the content does not match what people are really asking, or the brand lacks signals that it can be trusted.
Technical foundations
The technical layer decides whether a page can appear at all. Google states that a page must be indexed and eligible to be shown in Search with a snippet before it can appear as a supporting link in its AI features, and that there are no extra technical requirements beyond that.
An SEO service therefore starts by checking whether crawling is allowed in robots.txt and by any CDN, whether important pages are linked internally, whether the site loads quickly on a phone, and whether duplicate URLs are splitting attention. None of this is glamorous, but a page that Google cannot index will never be cited, ranked or recommended.
Content built around search intent
Keyword research tells a service what people type. Intent research tells it what they want when they type it. Someone searching for "SEO service" may be comparing providers, while someone searching for "what does an SEO service include" is still learning. The same brand needs different pages for each, and a competent \search engine optimisation service\ maps content to those stages instead of stuffing one page with every phrase.
Quality matters here more than volume. Google's guidance draws a line between commodity content, such as a generic list of tips that could have come from anyone, and non-commodity content that carries first-hand experience, original data or a clear expert viewpoint. Pages in the second group are the ones worth building, for human readers and for AI systems alike.
Authority and local visibility
Search engines also look outward. Links from relevant sites, consistent business details, reviews and an accurate Google Business Profile all signal that a brand is real and reliable. For shops and service businesses, Google specifically points to Business Profile and Merchant Center information as inputs that can surface in AI responses as well as ordinary results.
This is why an SEO service for a Delhi clinic looks different from one for a national online retailer. The first leans on local listings and reviews. The second leans on product feeds, category pages and a wider link profile.
What Generative Engine Optimisation Services Add?
\Generative engine optimisation services\ start from a simple observation: when an AI tool answers a question, it does not show ten options and let the reader choose. It assembles one response, and a handful of brands or sources earn a place inside it.
How AI answers are assembled
Google's guide describes two techniques behind its AI Overviews and AI Mode. Retrieval-augmented generation pulls relevant, current pages from the search index so the answer can be grounded in real sources. Query fan-out sends several related searches at once. For a question about fixing a lawn full of weeds, for instance, the system might also search for the best herbicides, chemical-free removal and ways to prevent weeds returning.
The practical lesson is that a brand is no longer competing only for one head keyword. It is competing across the cluster of sub-questions an AI tool decides to ask on the reader's behalf. A GEO service plans content and brand presence around that wider cluster.
What a GEO service typically covers
The first piece is an AI visibility audit. The provider runs a defined set of customer-style questions across the major AI tools, records which brands and sources appear, and checks whether the descriptions of the client are accurate. Outdated pricing, a wrong location or a missing product line often shows up at this stage.
The second piece is making the brand easy to understand. That means consistent facts across the website and profiles, clear explanations of what the company does and for whom, and expert-led pages that give an AI system something specific to quote. Original research, case studies and named authors help because they are hard to replicate.
The third piece is presence beyond the brand's own site. Google notes that its AI features can reflect what is said about products and services across blogs, videos and forums. Genuine reviews, press coverage and community participation therefore matter, though the same guidance warns that chasing inauthentic mentions is not as helpful as it looks.
The fourth piece is monitoring. AI answers change as models and sources change, so a GEO service tracks citations and brand mentions over time and adjusts the plan, rather than treating the work as a one-off project.
SEO and GEO Side by Side
The two services share a foundation and differ mainly in where success shows up and how it is measured.
| Dimension | SEO service | GEO service |
|---|---|---|
| Main goal | Rank pages in search results and earn clicks | Be cited, mentioned and described accurately in AI answers |
| Where results appear | Search results pages, maps, snippets | AI Overviews, AI Mode, ChatGPT, Perplexity and similar tools |
| Core focus | Technical health, intent-matched content, links, local signals | Clear brand facts, non-commodity content, third-party presence, monitoring |
| Typical metrics | Impressions, clicks, rankings, conversions | Citations, brand mentions, answer accuracy, referral traffic |
| Relationship | The foundation | An extension built on that foundation |
The last row is the one that matters most. Content that is not indexed cannot be retrieved, and a brand with no authority is rarely the one an AI system chooses to name. A strong \search engine optimisation service\ is the precondition for effective \generative engine optimisation services\, not a competitor to them.
What Google Itself Says About GEO?
Any brand hiring for this work should read what the largest search engine says about it. On 15 May 2026 Google published "Optimizing your website for generative AI features on Google Search", which it last updated on 10 July 2026. The document is direct on terminology: from Google Search's perspective, optimising for generative AI search is optimising for the search experience, and so it is still SEO.
The guide's advice is familiar. Create valuable, non-commodity content. Maintain a clear technical structure. Keep local business and ecommerce details accurate. It also lists things brands can ignore for Google Search, including llms.txt files and other special markup, breaking content into tiny chunks, rewriting pages purely for AI systems, seeking inauthentic mentions, and over-focusing on structured data.
Google adds a warning about tools. It says no third-party tool has access to its internal ranking or AI systems, and it recommends evaluating outside advice against its official guidance. It also recommends the Generative AI performance report in Search Console for seeing how content performs in these features.
Two points follow for buyers. First, a reputable GEO service should not sell a secret technique for Google, because Google says there is none. Second, the guidance describes Google only. Search Engine Journal's coverage points out that ChatGPT and Perplexity may weight signals differently, so platform-aware monitoring and brand work beyond Google are where a dedicated GEO service can legitimately add value.
How the Two Services Work Together?
In a well-run programme, the \SEO service\ and the GEO service share one plan, one set of priority pages and one reporting view. The sequence below is how most capable providers structure it.
Start with a combined audit
The audit looks at crawlability and indexing, page speed, content gaps, backlink quality and local listings, and it adds the AI visibility check described earlier. Running both together exposes mismatches, such as a page that ranks well but is described incorrectly by AI tools because its facts are outdated or inconsistent elsewhere.
Fix the foundation first
Technical problems and thin pages come before anything else. This is unglamorous work, but it supports everything that follows, including AI citations. A GEO service built on a site with indexing problems is money spent on the wrong layer.
Build content only experts could write
Next comes content with a point of view: comparison guides based on real customer questions, pricing explanations, original surveys, case studies and expert-authored articles. The aim is to produce pages that a reader would save and an AI system would find worth citing, because they say something specific that other pages do not.
Strengthen the brand beyond the website
Then the focus widens to reviews, partnerships, press, directories and community presence, all earned honestly. This helps conventional rankings through authority and helps AI answers through wider, consistent evidence that the brand exists and is credible.
Monitor, report and adjust
Finally, the two services report together. Search rankings and traffic sit next to AI citations, mention accuracy and enquiries, so the client gets a single view of visibility instead of two disconnected reports.
How to Choose an SEO Service and a GEO Service Provider?
Many agencies now advertise both services, and the quality gap between them is wide. A few questions separate serious providers from the rest.
Ask how the provider treats fundamentals. If a pitch for \generative engine optimisation services\ skips technical health and content quality, it is skipping the layer Google says matters most. Ask for a sample audit, and check whether it covers indexing, content intent and links, not only AI prompts.
Be wary of guarantees. No provider can promise a ranking, and none can promise a citation in ChatGPT or Perplexity, because those systems are not controlled by agencies. Google itself notes that meeting every requirement does not guarantee crawling, indexing or serving. Promises of fixed positions or guaranteed AI mentions are a reason to walk away.
Question tactics that sound technical but have no support. Google says llms.txt files and similar markup do not influence Google Search, though it adds that they do no harm either. Producing hundreds of near-identical pages to cover every possible query variation can also breach Google's scaled content abuse policy, which Google's guide specifically warns about.
Finally, ask how success will be reported. A credible \search engine optimisation service\ ties its work to enquiries, calls, form fills or sales. A credible GEO service explains which prompts it tracks, how often, and how it separates real changes from the normal movement in AI answers.
How to Measure Results?
Measurement is where many programmes fall apart, because AI visibility is newer and less standardised than ranking reports.
For Google, Search Console is the starting point. Google says sites appearing in AI Overviews and AI Mode are included in overall Search Console data, and it also offers a Generative AI performance report for these features. Pair that with Google Analytics or another analytics tool to track conversions and time on site, since traffic alone says little about business impact.
For other platforms, the practical method is a fixed prompt set. The provider writes a list of questions that real customers ask, runs them regularly across ChatGPT, Perplexity, Gemini and others, and records whether the brand appears, how it is described and which sources are cited. Doing this on a schedule reveals trends that a single check cannot.
Third-party tracking tools can help with this workflow, but their scores should be read as estimates. They have no access to the internal systems of the AI platforms, so a tool's "visibility score" is a sampled approximation, not a ranking Google or OpenAI would recognise.
Whichever method is used, the business metrics come last and count most: enquiries, bookings and revenue linked to organic and AI-assisted discovery.
Mistakes That Waste Budget
The most common mistake is buying a \GEO service\ before the SEO basics are sound. If key pages are not indexed, load slowly on phones or contain thin content, AI tools have nothing worth citing, and the spend lands on the wrong layer.
A second mistake is treating AI-written filler as content. Google's guidance warns against recycling what others have already said, or what a generative model could easily produce. Pages without original experience, data or opinion rarely earn rankings or citations.
A third mistake is chasing mentions. Paid placements dressed up as organic coverage, or networks of low-quality sites created to plant a brand name, run against what Google describes as helpful and can damage trust if they are discovered.
The last mistake is judging results too quickly or by a single metric. Rankings, citations and traffic move on different timelines, and a month of data from one AI tool says little about the whole programme.
Conclusion
Customers now move between search results and AI answers within the same task, which is why one without the other leaves a gap. The \SEO service\ secures the technical health, content and authority that make a brand findable. The GEO service watches how AI systems describe that brand, strengthens the evidence they draw from and reports on what changes.
The evidence also argues for restraint. Google says its AI features sit on top of its core ranking systems and that special tricks are unnecessary, while Pew's data shows that even a citation does not always bring a click. Brands that invest in useful, original pages and honest reporting are on firmer ground than those buying shortcuts.
For businesses in India, where YouGov found AI assistant use among online searchers running well ahead of most surveyed markets, a sensible next step is a combined audit. It should cover indexing and content quality alongside an AI visibility check, and it should end in a plan that ties each action to enquiries. A provider that offers an \SEO service\ and a \GEO service\ in that way is worth a conversation.
FAQs
Q: What is the difference between an SEO service and a GEO service?
An SEO service improves how a website performs in conventional search results through technical fixes, content aligned to search intent and authority signals. A GEO service focuses on how AI tools describe, cite and recommend a brand in generated answers. In practice the two overlap heavily, because the pages AI systems retrieve are usually the pages that already perform well in search.
Q: Is GEO replacing SEO?
No. Google's own guide says optimising for its generative AI features is still SEO, and those features draw on the Search index. YouGov's India data also shows AI assistants used alongside search engines, not instead of them. \Generative engine optimisation services\ extend the work of a \search engine optimisation service\ into new places. They do not replace it.
Q: Do small businesses need both an SEO service and a GEO service?
Most need the SEO service first. A small business with a weak site gains more from fixing indexing, writing useful pages and polishing its Google Business Profile than from separate AI work. Once those basics are in place, a lighter GEO service that checks how AI tools describe the business can be added without a large budget.
Q: Can anyone guarantee a brand will appear in ChatGPT or Google AI Overviews?
No. AI platforms control their own answers, and Google notes that even a compliant page is not guaranteed to be crawled, indexed or served. A reputable provider will promise a process, regular reporting and a clear plan, and will avoid guarantees about specific positions or citations.
Q: Will adding an llms.txt file or special schema help a brand show up in AI answers?
Google says no for its own Search, including AI Overviews and AI Mode. It states that Google Search does not use llms.txt files and that no special schema is needed for these features. Other AI platforms may treat such files differently, but Google's guidance is a good reason to treat them as optional rather than as a core part of any SEO service or GEO service.
Q: How can a brand check whether AI tools mention it?
The simplest method is to write a list of questions customers might ask, run them across several AI tools on a regular schedule and record which brands and sources appear. For Google specifically, Search Console's Generative AI performance report shows how content performs in those features. A GEO service usually formalises this process and reports the trends monthly.
I can also prepare a version with the HTML links checked for consistent keyword placement. Check all HTML keyword links