SEO vs AEO vs GEO: which comes first?

Picture a restaurant owner in Coimbatore. For years, a good spot on Google for "best biryani in Coimbatore" was enough. Now a hungry customer may read Google's AI summary at the top of the page instead, or ask ChatGPT and get three names back. Those are three different ways of being found, and each has its own name: SEO, AEO and GEO.

Here is what each one means, how they compare and where to start.

Search engines vs answer engines

A search engine, such as Google or Bing, gives you a list of links. You choose which one to open.

An answer engine, such as Google's AI Overviews, ChatGPT search or Perplexity, gives you a written answer. It reads several sources, combines them and shows where the information came from. You may never click at all.

That move from choosing to being told changes what "ranking" means, what your pages need to look like and how you measure success. It's why one discipline has become three.

What SEO, AEO and GEO each mean

SEO: ranking in the list of links

SEO (search engine optimisation) is shaping your website so it ranks high in the list of links on Google, Bing and DuckDuckGo. It's the oldest of the three. The work covers keywords, links from other websites, technical health, page speed and page titles. You measure it by rankings, visits and clicks.

SEO is still the foundation, but it no longer works alone. AI Overviews, featured snippets and knowledge panels now sit above the normal results, so even first place doesn't guarantee a click.

AEO: being quoted as the answer

AEO (answer engine optimisation) is shaping your pages so answer engines quote them as the direct answer: in Google's AI Overviews and featured snippets, and through voice assistants. You measure it by how often you're quoted there, rather than by clicks.

Voice assistants such as Siri, Google Assistant and Alexa read out one answer, not a list, so they need pages that answer questions plainly. Our AEO guide shows how to write them.

GEO: being named by AI chat tools

GEO (generative engine optimisation) is shaping your content and wider online presence so that ChatGPT, Perplexity, Gemini and Microsoft Copilot cite and recommend your business. These tools write a fresh answer from several sources and name a few of them. You measure GEO by how often you're named.

The lines blur, because ChatGPT and Perplexity quote pages as answers too, so AEO work helps there as well. The difference is focus. AEO is about your page being the answer. GEO is about your business being named, which also depends on what other websites say about you.

The audience is large. ChatGPT passed 900 million weekly active users in February 2026 (TechCrunch). Perplexity was already answering 780 million queries a month in May 2025 (Search Engine Land). Our GEO guide explains how to get cited.

SEO, AEO and GEO side by side

Strong SEO still matters most, but ranking and being cited have drifted apart. Only 38% of pages cited in Google's AI Overviews rank in the top 10 regular results (Ahrefs, March 2026). One reason: AI tools split each question into several related searches, called query fan-out, and cite pages that answer those well.

So AEO and GEO aren't alternatives to SEO. They multiply what a solid SEO base gives you, because AI tools still need to find and trust your pages first.

Which one does your business need first?

The real question isn't SEO or AEO or GEO. It's the order:

1. SEO first. Search engines must be able to find, crawl and trust your site before anything else works.
2. AEO next. Once your pages rank, reshape them so they're easy to quote. That turns rankings into answers people see, and it feeds GEO too.
3. GEO on top. Make your business easy for AI tools to name, then check each month whether they do.

Most businesses that come to us are still on step one, so steps two and three are where you can get ahead.

Doing all three as one plan

You don't need three separate projects. A clear page that answers a question helps all three at once. A combined plan looks like this:

1. Fix the technical basics. Clear crawl errors, speed up your pages and check your Core Web Vitals (Google's measures of how fast and stable a page feels). Make sure the mobile version of your site is complete, since that's the one Google indexes.
2. Research the questions. List the questions your customers ask, match each to a page, and fill the gaps over time. This serves SEO and AEO at once.
3. Rework your top pages. Rewrite your 10 to 20 most important pages answer-first, with questions as headings. Add Organization and LocalBusiness structured data (code that tells search engines who you are), plus FAQ markup only where the questions are visible.
4. Build authority. Earn links from relevant, respected sites and publish original research or data. Get mentioned in industry directories, LinkedIn articles and other places AI tools read. Keep your details the same on your Google Business Profile, LinkedIn and Crunchbase.
5. Track your citations. Each month, check whether ChatGPT, Perplexity and Gemini mention you for your 20 most important questions. Rework the pages they pass over.
6. Keep at it. AI models change often, and what earns a citation this quarter may not next quarter. Treat it as a habit, not a one-time setup.

What to do this week

Find out which layer needs work first:

1. Search Google for your main service and your town. Not on the first page? Start with SEO.
2. See whether an AI Overview appears and whose pages it cites. Ranking but not cited? Work on AEO.
3. Ask ChatGPT and Perplexity the same question. If they name competitors and not you, that's your GEO gap.
4. Run our free AI-visibility check to see what AI crawlers can read on your site.

How Simeon helps

We usually start with a free audit of your website, Google listing and AI-answer visibility, so you know which layer to fix first. Then we fix the SEO basics, rework your key pages to answer questions first, and track each month whether ChatGPT, Gemini, Perplexity and AI Overviews cite you. See our AEO and GEO service or our prices.