Every AI engine runs its own search, reads its own websites and builds its own shortlist. Showing up on one does not mean you show up on the others. This page helps you check all three, find the gap, and fix it.
Where to start
Make sure AI search bots can read your site
ChatGPT only shows sites that let its search crawler, OAI-SearchBot, in. Many sites block it by accident in robots.txt. Open yoursite.com/robots.txt in a new tab, copy everything, and paste it below.
Robots.txt checker
Runs in your browser. Nothing is sent anywhere. The example below has a common mistake in it; press Check to see.
The fix: paste this into robots.txt
Keep your existing rules and add these lines. This lets the AI search crawlers in. GPTBot is OpenAI's training crawler; blocking it does not hide you from ChatGPT search, so that choice is yours.
User-agent: OAI-SearchBot Allow: / User-agent: ChatGPT-User Allow: / User-agent: PerplexityBot Allow: /
Get onto the sites each engine actually cites
If the pages an engine reads don't mention you, its answer won't either. Each engine cites different sites, so check all of them.
Buying-question generator
Fill in your category. You get 10 questions real buyers ask, without your brand name in them. You will use these in Step 3 too.
Score your AI visibility the right way
One check proves nothing. AI answers can change each time you ask. Ask each question 5 times on each engine, logged out or with memory off, and type how many times your brand appeared.
AI visibility scorecard Example numbers
Enter 0 to 5 in each box. Your scores stay in this browser so you can come back next month.
| # | Question | ChatGPT | Perplexity | Gemini |
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Crawler names and timing: OpenAI and Perplexity crawler documentation. Free guide by SEO to GEO HQ.