The short version
GEO is the practice of structuring your content and signals so that generative AI systems can find, trust and quote your business when they answer a question. Where SEO aims to rank a page, GEO aims to be the source the AI names. The two are not competing disciplines. GEO is best understood as an extension of SEO, adapted for a results page that now has an AI written summary sitting on top of it, not a replacement for the work underneath.
How did Large Language Models (LLM) changed SEO?
Tools like Google AI Overviews, ChatGPT, Gemini and Perplexity increasingly give people a direct answer instead of ten links. They read the web, decide what is trustworthy, and cite a handful of sources. If you are not among them, you can be invisible even when your information is good. Google documents how these AI features in Search select and show sources, and is explicit that there is no separate AI index behind them.
Where does the information in an AI answer actually come from?
AI tools do not quietly crawl the entire internet in real time to answer your question. Most of them lean on a search engine's existing index.
| AI surface | Index it reads from | Overlap with organic rankings |
|---|---|---|
| Google AI Overviews / AI Mode | Google's own organic search index | Around 70 to 80% of citations come from pages already ranking in the top 10 organic results |
| ChatGPT (browsing) and Microsoft Copilot | Bing's search index | 87% of citations match Bing's top organic results for the same query |
| Perplexity | Live retrieval blended with its own ranking | Still favours well linked, well structured pages, using signals close to standard rankings |
In every case, the AI is reading from an index that already exists, not building its own from scratch.
Why you still need to rank well before you get cited
This is the part that gets missed. A study by Seer Interactive checked over 500 ChatGPT citations against two different search engines, to see which one ChatGPT was actually pulling from.
The gap tells the story. ChatGPT's citations track Bing's rankings far more closely than Google's, because Bing's index is what it actually reads from. If your page is not ranking there, it is not in the pool ChatGPT is choosing from, regardless of how it performs on Google. Ranking is the entry ticket. Being clear, well structured and easy to extract is what gets you picked once you are in the room.
How do you get cited?
By being clear, structured and trustworthy, on top of a page that already ranks reasonably well. That means direct answers near the top of a page, clean headings, FAQ and how-to formatting, and schema markup, all of which fall under AI optimisation. It also means publishing accurate, genuinely useful content that an AI tool would be comfortable quoting. For a look at the concrete work this involves day to day, see our GEO service page.
Should you act now?
If people in your market are starting to ask AI tools for recommendations, yes. The businesses building clear, quotable content today are the ones AI tools will lean on tomorrow. For the bigger picture on organic visibility, see our guide to SEO for Malaysian businesses, or talk to us.