SEO, AEO and GEO: What Business Leaders Need to Know About the New Search Landscape

For years, search visibility meant ranking positions, organic traffic, featured snippets, backlinks and keyword performance. Those signals still matter, but the way people search is changing fast.

Search engines and AI platforms increasingly deliver direct, summarised answers instead of a list of links. Google’s AI Overviews and AI Mode, Bing Copilot Search, Perplexity and other generative tools can interpret a query, gather information from multiple sources and produce a response without the user ever clicking through. Google has confirmed that these AI search features run on the same core search systems, and that no separate technical setup is required beyond standard eligibility for Google Search.

This shift has introduced two newer terms into marketing conversations: AEO and GEO. They’re closely related to SEO, but they aren’t interchangeable with it. For any organisation that depends on search for visibility, leads or brand authority, understanding the difference is now a strategic priority.

What Is SEO?

Search engine optimisation, or SEO, is the foundation everything else sits on. Its job is to make a website discoverable, crawlable, indexable and competitive in traditional search results.

Good SEO combines technical health, useful content, keyword relevance, internal site architecture, page speed, mobile performance, authority signals and trustworthy backlinks. It also requires understanding search intent; what someone actually wants to achieve when they type a query into Google, Bing or elsewhere.

SEO still matters because AI-led search experiences depend heavily on indexed web content. If a page can’t be crawled, understood or trusted by search engines, it’s unlikely to perform well in traditional results, or to be selected as a source in AI-generated answers.

What Is AEO?

Answer engine optimisation, or AEO, focuses on making content suitable for answer-led search experiences.

Rather than only competing to rank as a blue link, AEO aims to help content become the answer — or part of it — when a search engine summarises information directly on the results page. That covers featured snippets, “People also ask” results, AI Overviews and other direct-response formats.

AEO works best when content is clear, concise and easy to extract. That means answering the important question early, using logical headings, adding FAQs where they genuinely help, explaining concepts in plain English, and structuring information so machines and people can both follow it.

A page targeting “What is AEO?”, for example, shouldn’t bury the answer halfway down the article. It should lead with a direct definition, then expand with examples, use cases and practical guidance.

What Is GEO?

Generative engine optimisation, or GEO, is the process of improving the likelihood that AI platforms will reference, cite or draw on your content when generating a response.

It applies to generative search and conversational platforms that synthesise information from multiple sources. Unlike traditional SEO, where the goal is usually a ranking position, GEO is about becoming a reliable source inside an AI-generated answer.

That takes more than keyword placement. Generative systems favour content that’s well structured, factually sound, specific and backed by evidence. Original research, expert commentary, clear authorship, transparent sourcing and regularly updated information all improve a brand’s odds of being recognised as a useful reference.

Agencies specialising in this area, such as New Horizon Marketing and Advertising, are increasingly building this kind of citation tracking and generative visibility work into their client reporting.

Bing’s AI Performance reporting, which entered public preview in 2026, reflects this shift, giving site owners visibility into how often their pages are cited in AI-generated answers across Microsoft Copilot, Bing summaries and related experiences.

How SEO, AEO and GEO Differ

The easiest way to tell the three apart is to look at what each one is optimising for:

SEO: Helps a page rank and attract organic traffic from search engines.
AEO: Helps a page provide clear, extractable answers for search features and answer engines.
GEO: Helps a brand become a trusted source inside generative AI responses.

They’re measured differently too:

SEO metrics: Rankings, impressions, clicks, traffic and conversions.
AEO metrics: Answer placements, featured snippets, visibility in AI summaries and question-based search performance.
GEO metrics: AI citations, brand mentions in generative responses, referral traffic from AI platforms and the quality of those visits.

However, the three overlap heavily. Strong SEO supports AEO and GEO. Clear, AEO-style answers improve a page’s usefulness for both readers and AI systems. And GEO depends on the credibility, clarity and authority that good SEO has always tried to build.

Do AEO and GEO Replace SEO?

No. They extend it.

Businesses shouldn’t treat SEO, AEO and GEO as competing strategies. Traditional SEO still provides the technical and authority foundation that search systems need. AEO adapts content for direct-answer formats. GEO prepares content for AI-driven discovery environments.

Google’s own guidance is clear that established SEO best practice remains relevant for generative AI features in Search, including AI Overviews and AI Mode. What’s changed is that content now has to work harder — satisfying human readers, search crawlers and the AI systems that summarise, compare and cite information, all at once.

How Businesses Can Optimise for All Three

Start with genuinely useful content. Thin articles, vague claims and generic AI-written copy won’t stand out — focus on topics where the business has real expertise, experience or data.

From there:

Structure: Use descriptive headings, short paragraphs, clear definitions, comparison tables and question-led sections, so a reader can scan the page and a machine can identify the main answer.
Authority: Include named experts where relevant, cite reliable sources, avoid unsupported claims, and review content regularly — outdated information weakens trust fast in industries that move quickly.
Measurement: Keep tracking rankings and organic traffic, but add visibility in AI summaries, referrals from AI platforms, brand mentions, citation frequency and conversions from answer-led journeys.

The Strategic Takeaway

SEO is no longer just about ranking. It’s about visibility across an expanding search ecosystem.

AEO and GEO don’t make SEO obsolete; they make it broader. Businesses that combine technical performance, clear answers, credible expertise and structured content will be better placed to show up wherever customers now search, whether that’s a traditional results page, an AI overview or a generative assistant.

For leaders, the real question isn’t whether SEO, AEO or GEO matters most. It’s whether your organisation’s knowledge is clear, trustworthy and accessible enough to be chosen as the answer.

About the Author

This article was developed in collaboration with Joaquin Morales, Search Director at New Horizon Marketing and Advertising.