What is AI search? How customers find your business through ChatGPT and Google's AI answers
The change in how people search
For twenty years searching meant typing a phrase into Google and getting ten blue links. Now more of that traffic ends with an answer, not a list. ChatGPT quotes three websites. Google shows an "AI Overview" summarising four articles. Perplexity gives a paragraph with numbered footnotes.
Two things follow from this. First, being on page one is no longer enough — you need to be the source the AI picks up. Second, the technical rules for being pickable are different from classical SEO in important ways.
How AI engines choose sources
ChatGPT and Perplexity use their own crawlers (GPTBot, PerplexityBot, ClaudeBot). They download pages, read the text, and index it. When a user asks a question, the engine retrieves matching passages and asks the model to synthesise an answer, naming the sources.
Google's AI Overviews use Google's existing index. The difference is that instead of ranking pages against each other, the model reads the top few pages and writes a summary.
What all of them share:
- They prefer pages where the answer to a question is stated directly and early.
- They prefer well-structured pages (clear H1, H2, short paragraphs, numbered lists).
- They prefer sources that other trusted sources already cite.
- They cannot see anything that only appears after JavaScript runs. If your page is a React app that fetches its content after loading, the AI crawler sees a nearly empty page.
The static-HTML rule
This is the single most important technical point in AI search. Human browsers run JavaScript, so people see the full page. Most AI crawlers do not. If the article you wrote loads via JS, the model finds nothing to cite.
The fix is server-side rendering or static site generation: the initial HTML response contains the full text of the article. You can check any of your pages by right-clicking and choosing "View source" (not "Inspect"). If you cannot see the paragraphs of your article in the raw HTML, no AI engine will either.
What makes a page "AI-liftable"
Look at what actually gets quoted in ChatGPT answers. The pattern is consistent:
- A short direct answer near the top of the page (40 to 80 words) that could be lifted as-is.
- Concrete facts with numbers, dates, prices, and named entities. "Costs typically 950 to 3000 euros in Finland" beats "prices vary".
- Comparison tables and numbered steps. AI models love structured lists.
- A FAQ section with real questions and full-sentence answers. This is why FAQ blocks now appear in almost every AI-visible page.
- Author and publication date visible on the page. Trust signals matter more, not less.
GEO versus SEO — same or different?
Mostly the same, with three specific differences.
Same: content quality, topical authority, backlinks from trusted sources, clean HTML, mobile-friendly, no cloaking.
Different: AI engines reward direct answers more heavily than Google (which rewards depth), they cannot execute JavaScript (so client-side apps are invisible), and they weight structured facts over general prose.
Practical implication: do good SEO, then add the direct-answer paragraph and the FAQ block. Do not throw away what you have.
What to do this month
- Check every important page with "View source" — confirm the text is really in the HTML.
- Add a 40 to 60 word direct answer at the top of each article page.
- Add a 4 to 6 question FAQ section at the bottom of each service page.
- Allow GPTBot, ClaudeBot, PerplexityBot and Google-Extended in your robots.txt.
- Publish a simple llms.txt file at the root of your site listing your main pages with one-line descriptions. Every serious AI-friendly site now has one.
AI visibility is not a separate channel to master. It is what happens when you write clearly, structure well, and serve real HTML.
Frequently asked questions
Do I need a separate strategy for AI search versus Google?
No. About 80% of what makes a page rank on Google also makes it AI-quotable. The extra 20% is direct-answer paragraphs, FAQ blocks, and confirming your page content is in the HTML, not injected by JavaScript.
How do I know if my site is invisible to AI crawlers?
Open any of your pages, right-click and choose 'View source' (not 'Inspect'). Search for a full sentence from your article. If the sentence is not there, the AI cannot see it either. Most WordPress and static sites are fine; many React and Vue single-page apps are not.
Should I let AI companies scrape my site?
For most businesses selling to customers who use ChatGPT: yes. Being scraped is what makes you a citable source. Block only if you sell content itself (news, courses) and losing the click-through to AI answers would hurt you.
What is llms.txt?
A small text file at the root of your site (like robots.txt) that lists your main pages with one-line descriptions. It helps AI engines quickly understand what your site is about. Not a ranking factor yet, but low-cost and widely recommended.
Is GEO going to replace SEO?
No, it will run alongside it. Traditional search remains a major traffic source, and AI answers still cite web pages, which means the pages still need to rank. Think of GEO as a small upgrade to your SEO practice, not a replacement.
How do I track whether AI engines mention my business?
Manually, for now. Ask ChatGPT, Perplexity and Google's AI Overviews the questions your customers would ask, and note which sites get named. Paid tools like Otterly and Peec exist but the free approach works fine for weekly spot-checks.
Published · Kaspar Eevald
Bluefour – Helsinki digital agency | hello@bluefour.fi | +358 45 850 4236