SEO vs AEO vs GEO: What Changed and What Still Matters

Introduction

For twenty years, "getting found online" meant one thing: ranking on Google. Now your customers might get their answer from a Google AI Overview, ChatGPT, Perplexity or Gemini, often without clicking a single link.

That shift has created a lot of new terms. SEO, AEO, GEO, LLMO, AI SEO. Some say SEO is dead. Others say nothing has changed. The truth sits in the middle.

This guide covers what each term means, how they differ, what has changed and what still works.

What Is SEO?

Search Engine Optimisation (SEO) is the practice of improving your website so it ranks higher in traditional search results, the familiar list of blue links.

SEO rests on three foundations:

• Technical SEO: making sure search engines can crawl, render and index your site (speed, sitemaps, site structure, mobile-friendliness)

• On-page SEO: content that matches what people search for, with clear titles, headings and internal links

• Off-page SEO: authority signals, mainly backlinks from other trusted websites

The goal: rank on page one and earn clicks.

What Is AEO?

Answer Engine Optimisation (AEO) focuses on getting your content chosen as the direct answer to a question. This covers featured snippets, "People Also Ask" boxes, voice assistants and Google AI Overviews.

AEO is about:

• Answering specific questions clearly and concisely

• Structuring content with question-based headings and short, direct answers

• Using schema markup (FAQ, HowTo, Product, LocalBusiness) so machines understand your content

• Covering the follow-up questions your audience naturally asks

The goal: be the answer, not just a result.

What Is GEO?

Generative Engine Optimisation (GEO) is about being cited, mentioned or recommended by generative AI tools like ChatGPT, Perplexity, Gemini, Claude and Google AI Mode.

These tools don't show a ranked list. They put together an answer from many sources and sometimes cite them. GEO focuses on:

• Being a trusted, frequently referenced source in your category

• Brand mentions across the web (reviews, forums, press, directories, Reddit, YouTube)

• Clear, factual, well-structured content that AI can easily pull from and quote

• Consistent information about your brand everywhere it appears

The goal: be included when AI recommends a brand or explains a topic.

SEO vs AEO vs GEO at a Glance

	SEO	AEO	GEO
Where it shows	Google/Bing results	Featured snippets, AI Overviews, voice	ChatGPT, Perplexity, Gemini, AI Mode
Main goal	Rank and get clicks	Be the direct answer	Be cited or recommended
Key signals	Relevance, backlinks, technical health	Clear answers, structure, schema	Authority, brand mentions, citability
Success metric	Rankings, organic traffic	Snippet/AIO visibility	AI citations, share of voice
Content style	Comprehensive, keyword-focused	Question-and-answer, concise	Factual, quotable, expert

What Has Changed

1. Fewer Clicks for Simple Questions

When AI answers a question directly on the results page, fewer people click through. Simple informational queries ("what is", "how many") are most affected.

2. Visibility Is No Longer Just Rankings

A brand can be mentioned in an AI answer without ranking #1, and a #1 page can be left out of the AI summary. Now you need to track both.

3. Brand Mentions Matter More

AI tools learn from the whole web, not only your website. What forums, reviews, publications and comparison sites say about you now shapes whether AI recommends you.

4. Structure Beats Length

Long, padded content is less useful to AI. Clear headings, direct answers, lists, tables and specific facts make content easier to pull from and cite.

5. Measurement Is Evolving

Traditional tools track rankings and traffic. Brands now also track AI search visibility: how often they appear in AI answers, for which prompts and against which competitors.

What Still Matters (a Lot)

Here is the good news: most of what makes AEO and GEO work is good SEO.

• Technical health still comes first. If AI crawlers and search engines can't access your pages, you won't appear anywhere. Broken sitemaps, slow pages and indexing issues hurt all three.

• Search engines are still where AI gets its sources. Many AI tools pull from search results when they build answers, so ranking well improves your chance of being cited.

• Authority still wins. Backlinks, reputation and expertise are signals both Google and AI models rely on.

• E-E-A-T still matters. Experience, Expertise, Authoritativeness and Trustworthiness separate content that gets cited from content that gets ignored.

• Search intent still matters. Understanding what your customer actually wants is still the foundation of every piece of content.

• High-intent searches still get clicks. People ready to buy, book or compare still click through to websites.

SEO isn't dead. It's the foundation that AEO and GEO are built on.

How to Optimise for All Three

1. Fix your technical foundation. Run a technical audit covering crawlability, indexation, sitemaps, speed and mobile experience.

2. Answer real questions. Build content around the questions your customers ask, with a clear answer in the first two or three sentences.

3. Use structure and schema. Add question-based headings, lists and tables, plus FAQ, Product, Organisation and LocalBusiness schema.

4. Build topical authority. Create content clusters that cover a topic in depth, with one main page per topic so your own pages don't compete with each other.

5. Grow your brand footprint. Earn mentions and reviews, and appear in listicles, directories, forums and industry publications.

6. Keep brand information consistent. Your name, services, locations and key facts should match across your site, Google Business Profile and third-party sites.

7. Track AI visibility alongside rankings. Measure where you appear in AI Overviews and AI tools, and which competitors get cited instead.

Which Should Your Brand Focus On?

You don't have to choose. Think of them as layers:

• SEO gets you found and builds authority

• AEO gets you chosen as the answer

• GEO gets you recommended by AI

A modern search strategy covers all three, starting with a strong SEO foundation.

Conclusion

Search has changed, and your audience's journey now includes AI answers as well as search results. The brands that stay visible won't be the ones chasing every new acronym. They will be the ones with strong technical foundations, genuinely helpful content and a trusted brand presence across the web.

Want to know how visible your brand is in Google and AI search? Talk to Launch Cycle about an SEO and AI search visibility audit.

FAQs

Is SEO dead because of AI?

No. AI tools rely heavily on search results and well-structured websites. Strong SEO improves your chances of appearing in AI answers.

What is the difference between AEO and GEO?

AEO focuses on being the direct answer in search features like featured snippets and AI Overviews. GEO focuses on being cited or recommended by generative AI tools like ChatGPT and Perplexity.

Do I need separate strategies for SEO, AEO and GEO?

No. They overlap heavily. One integrated strategy works best: a technical foundation, content structured around questions, and authority building.

How do I know if my brand appears in AI search?

AI search visibility tools track how often your brand is cited in AI answers for relevant prompts, compared with competitors.

Publishing notes: add FAQPage schema to the FAQ section. Internal links: SEO service page, the AI-led performance marketing blog, and future posts on technical SEO audits, schema markup and AI visibility tracking.