Same question. Opposite answers.

The question was simple: are there any fully AI real estate CE schools in Arizona?

Gemini answered with my school by name. Quoted my site, got the school number right, named Ada, knew she answers from the Law Book, listed the CE categories. It cited my pages four separate times.

ChatGPT said no such school appeared to exist. Then it named three of my competitors.

Only when I typed "Avance" directly did ChatGPT find me. And then it read everything perfectly — even pulled my record from ADRE's database to check I was real.

So it could read me fine. It just couldn't find me.

I spent the rest of the day working out why, and the reason is something almost no agent has heard of.

A lot of modern websites don't send your text to whoever asks for the page. They send a mostly empty file plus a program, and the visitor's browser runs that program to build the page. You never notice, because your browser does it in under a second.

Google spent years and a fortune building machines that run those programs before deciding what a page says. Gemini runs on that same machinery. That's why it found me.

ChatGPT never built that. Neither did Claude or Perplexity. They ask for the page, read whatever text comes back, and move on. If your text only appears after the program runs, they see an empty room.

This isn't a theory I'm floating. Vercel, which hosts a large share of the modern web, published its own traffic data — hundreds of millions of requests from these crawlers in a single month, with no evidence any of them ran the page's code.

So a page can rank number one on Google and be completely blank to the assistant your client is typing into.

If this were an even split it wouldn't matter much. It isn't. US share of AI assistant traffic, from Similarweb, as of May 2026:

ChatGPT — 58.3% · can't read your site
Gemini — 19.3% · can
Claude — 13.4% · can't
Grok — 2.4% · Perplexity — 1.3% · can't

Add it up. Roughly three out of four AI questions in this country go to something that may not be able to read your website. The one that can is the small one.

To be clear about what that is and isn't: it's usage, not quality. Each of these is better than the others at something. ChatGPT isn't on top because it wins a benchmark. It's on top because it got there first, it's free, it's on everyone's phone, and it's the one your mother has heard of. Most used is the only thing that matters here — because it's the one your client is going to ask.

One honest caveat: these are web-visit estimates, app usage adds more on top, and different firms publish different figures. The decimals will move. The shape won't.

Now the part that makes this your business and not trivia. About a third of consumers say they now start a search inside an AI assistant instead of a search engine. Your buyers are asking a chat window which agent knows Gilbert. Your sellers are asking whether your commission is normal. They're not scrolling page one anymore — and there's no page two in an AI answer. There's one paragraph with two or three names in it.

You're either in that paragraph or you aren't.

I checked my own school's homepage the way a machine would. Back came the page title, a one-line description, and nothing else. No headline. No Ada. No school number. No courses. An empty room.

Seven months building AI tools, and my own front door was unreadable to most of the AI on earth.

But here's the strange part, and it's the most useful thing in this issue. One section of my site wasn't empty — the archive where these newsletters get published. I built that part readable, back when I was still thinking about Google.

So when ChatGPT finally did find me, most of what it knew came from there. Not from my marketing. From these letters.

The stuff I wrote was carrying my business, because the stuff I designed couldn't be read. I don't think that's only true of me.

If it fails, this is a fixable thing and you don't have to understand it yourself. Send whoever built your site one sentence: our pages need to be server-rendered or prerendered so crawlers that don't execute JavaScript can read the content. Any competent developer will know exactly what that means. If they tell you it doesn't matter for SEO, they're answering a question about Google. That isn't the question anymore.

For twenty years the job was ranking. Get on page one, get found. We hired people for it, argued about it, paid for it.

I said in this issue that I was fixing mine that week and would report back on whether it worked. It did — avanceschool.com now returns its full content to a crawler that doesn't run JavaScript.

Run the test on your own site. It costs two minutes and it's the cheapest thing on this list.