SEO vs GEO: What Changes, What Stays the Same

What is SEO, and why did it work?

For two decades, search engine optimisation was the primary way businesses got found online. The logic was simple: figure out what your customers search for on Google, create content that matches those queries, and optimise your site so Google ranks you above the competition.

SEO worked because it aligned with how people behaved. Someone needed a product or service, they typed a query into Google, and they clicked on one of the results. The entire customer acquisition funnel started with a search results page.

The discipline matured around Google's algorithm. Keywords, backlinks, meta tags, page speed, mobile responsiveness — every technique mapped to a specific ranking signal. Businesses that mastered these signals got traffic. Traffic led to leads. Leads led to revenue.

What changed?

The search results page is no longer the only starting point. In 2025 and 2026, a growing share of commercial queries — especially recommendation and comparison searches — are being handled by AI.

When a founder asks ChatGPT "What is the best CRM for a 20-person team?" they do not get a list of ten links. They get a direct recommendation with reasoning. When a marketing manager asks Perplexity "Which agencies specialise in B2B content?" they get named suggestions with source citations.

This shift changes the equation fundamentally. In traditional search, you compete for position on a results page. In AI search, you compete to be the answer itself.

What is GEO?

Generative Engine Optimisation is the practice of making your business visible to AI-powered search and recommendation engines. If SEO asks "How do I rank on Google?", GEO asks "How do I get recommended by ChatGPT?"

The answer is structurally different from SEO. AI engines do not rank pages — they synthesise information from multiple sources and generate a response. To be included in that response, your business needs to be:

• Present across multiple platforms. AI engines cross-reference. If your business appears only on your website, you are less likely to be cited than a competitor who appears on YouTube, in podcasts, and in third-party articles.
• Structured for extraction. AI engines parse content to find citable answers. Clear headings, TL;DR summaries, FAQ sections, and direct statements make your content easier to cite.
• Corroborated by independent sources. When multiple independent sources mention your business, AI engines treat you as more authoritative. Third-party mentions carry significant weight.

What stays the same?

The foundational principle has not changed: create genuinely valuable content for your audience. SEO rewarded this. GEO rewards it even more, because AI engines are better at distinguishing substance from filler.

Content quality matters more, not less. AI engines can process the full text of your content, not just the title tag and meta description. Thin content that gamed Google's algorithm will not impress an AI that reads every word.

Technical accessibility also transfers directly. A fast, well-structured, crawlable website is good for both SEO and GEO. Schema markup, semantic HTML, and clean URL structures help both Google's crawlers and AI data pipelines.

What is different?

Three fundamental shifts separate GEO from SEO.

Multi-platform presence replaces on-site optimisation. In SEO, your website was the centre of gravity. In GEO, your presence across YouTube, podcasts, social media, and third-party publications matters as much or more than your website. AI engines aggregate across sources.

Being cited replaces being ranked. SEO success was measured by your position on a results page. GEO success is measured by whether an AI engine mentions your business by name in a recommendation. Position one versus position three mattered in Google. In AI search, you are either recommended or you are not.

Conversational relevance replaces keyword matching. SEO optimised for specific search terms. GEO optimises for the kinds of questions people ask in natural language. "Best B2B content agency in Berlin" is a different optimisation target than the keyword string "B2B content agency Berlin."

How to think about the transition

SEO and GEO are not opposing strategies. Most businesses should do both, but with different expectations for each.

SEO is your foundation. It ensures your website is technically sound, crawlable, and authoritative. These signals still matter for AI engines — they just are not sufficient on their own.

GEO is your growth lever. It builds the multi-platform, multi-source presence that AI engines use to decide who to recommend. If you are starting fresh or looking for new customer acquisition, GEO is where the leverage is.

The businesses that will win in 2026 and beyond are the ones that treat their website as one node in a larger content ecosystem — not the destination, but the home base of a network that spans video, audio, social, and third-party mentions.