GEO vs SEO: the difference, and why you need both

The short answer

SEO, or search engine optimization, is about ranking your pages in search results. You pick a phrase a customer might type, you build a page around it, and you try to appear as high as possible in the list of links.

GEO, or generative engine optimization, is about getting your business named in answers written by AI assistants such as ChatGPT, Gemini, Perplexity and Google's AI Overviews. Here there is no list of ten links. There is a short written answer that names a few businesses, or none.

You need both. Many AI assistants search the web before they answer, so they still depend on pages that search engines can find and trust. If your site is invisible to search engines, it is likely invisible to the assistants too.

For example, a dentist in Leeds might rank well for "emergency dentist Leeds" but never appear when someone asks an AI assistant "who should I call for a broken tooth tonight?" The first is an SEO result. The second is a GEO gap.

Side by side

The two disciplines look similar from a distance and quite different up close. The table below sets out the main differences.

• Goal: SEO aims to rank a page. GEO aims to be named in an answer.
• Where it happens: SEO lives in search results pages. GEO lives inside AI answers.
• What wins: SEO rewards relevance and authority. GEO rewards clear, quotable answers plus mentions on sites the AI trusts.
• How you measure it: SEO uses rankings and clicks. GEO uses how often you are named, by which assistant, and alongside which competitors.
• What the customer sees: SEO gives them a list of links to choose from. GEO gives them a short answer naming a few businesses.

That last point matters most. A list of links invites comparison. A named answer feels like a recommendation, even though it is generated text.

For example, a wedding photographer in Dublin might sit at position three for "wedding photographer Dublin" and still lose the enquiry, because the customer asked an assistant instead and the assistant named three other studios.

Where GEO and SEO overlap

Most of the work is shared. If you do these four things well, you are helping both at once.

• Crawlable, fast pages with clear headings. If a search engine cannot read your page quickly, an assistant is unlikely to quote it.
• Content that answers real customer questions directly. One question, one clear answer, near the top of the page.
• Being mentioned and linked by reputable sites in your field. Directories, trade bodies, local press and industry blogs all count.
• Accurate business details everywhere they appear. Same name, same address, same phone number, same opening hours.

Each of these matters because assistants assemble answers from sources they can verify. Conflicting details make a business look unreliable, and unreliable sources get skipped.

For example, a plumber in Manchester with three different phone numbers across three directories is harder to confirm than one with a single consistent listing.

What GEO adds

GEO adds a layer of checking and reporting that SEO tools do not cover. You cannot see AI answers in Search Console, so you have to go and look.

• Checking what the assistants actually say, question by question. You ask the questions your customers ask and read the answers in full.
• Watching which competitors are named instead of you. Knowing the names is the first step to closing the gap.
• Finding the sites the assistants cite for your market, and getting listed or mentioned there. Those citations are the raw material of the answer.
• Writing answers that can be quoted on their own: one question, one clear paragraph, no long build-up.

This is where a tool helps, because the checking has to happen on a schedule. Vasukai asks AI assistants the questions your customers ask, on a schedule you pick, and shows whether you are named, who is named instead, and which websites were cited. It covers both GEO and SEO in one account, and there is a free first check that needs no card.

For example, a software trainer in Singapore might find that assistants keep citing a comparison article that lists four competitors and not her. Getting added to that article is a GEO task, not an SEO one.

Is GEO replacing SEO?

No. Search engines still send most website visits, and many assistants search the web before they answer. That means the pages SEO produces are still the foundation.

What is changing is that some questions now end in an AI answer without a click. The customer gets their answer on the page they were already on and never visits a website. Being named in that answer matters, because it is the only visibility you get.

So the honest framing is that GEO builds on SEO rather than replacing it. Drop SEO and your GEO results weaken, because the assistants lose the pages they were relying on.

If you want the longer comparison of how the two disciplines relate, see GEO vs SEO.

What to do first

You do not need to rebuild everything. Work through these four steps in order.

1. Check what AI assistants say about your business today. Ask the questions your customers ask and read the answers.
2. Fix the basics of SEO if pages are missing or unclear. Clear headings, one topic per page, fast loading, consistent business details.
3. Act on the gaps: the questions where a competitor is named and you are not. Start with the ones closest to a sale.
4. Repeat the check on a schedule, because AI answers change as assistants update and as new sources appear.

Step one is the one most owners skip, and it is the one that tells you whether there is a problem at all. You may find you are already named for your most valuable questions, in which case the work is about defending that position.

For example, an accountant in Toronto might discover she is named for general tax questions but never for the industry-specific ones her best clients ask. That tells her exactly which pages to write next.

Vasukai covers both sides in one account, with a free first check that needs no card. It shows what ChatGPT says about your business, then tracks the assistants you choose on the schedule you pick.