Does ChatGPT recommend your brand?
Your buyers now ask AI before they ask Google. Find out in under a minute whether ChatGPT, Perplexity and Gemini mention you — or send customers to your competitors.
How the free AI visibility check works
We generate 3 realistic, unbranded prompts for your category — the questions people ask before they buy.
Each prompt runs on ChatGPT, Perplexity and Gemini with live web search, localized to your market.
Whether you're mentioned, at what position, who's recommended instead, and which sources the engines trust.
Track your AI share of voice every week
serp.ac monitors your prompts on ChatGPT, Perplexity, Gemini, Claude, Google AI Mode and Microsoft Copilot, explains why you're not visible, and tells you exactly what to fix.
Start 7-day free trial- Visibility & share of voice
See how often you're mentioned vs. competitors, by engine, week over week.
- Cited sources
Know which review sites, articles and threads AI relies on — and get listed there.
- “Why am I not visible?” diagnosis
Compare your page with the pages AI cites and get prioritized fixes.
- AI crawler & llms.txt audit
Make sure GPTBot, ClaudeBot and PerplexityBot can actually read your site.
Frequently asked questions
What is AI visibility?
AI visibility (also called GEO — generative engine optimization) measures how often AI assistants like ChatGPT, Perplexity, Gemini and Google AI Mode mention or cite your brand when people ask questions in your category.
Why don't AI assistants mention my brand?
Usually because the sources they trust — review sites, listicles, community threads and well-structured pages that answer the question directly — don't mention you. The checker shows which sources are cited so you know where to show up.
Is the checker really free?
Yes. You can run 3 checks per hour without signing up. For weekly tracking of unlimited prompts across 6 AI engines, start a free trial.
How accurate is a single check?
AI answers vary between runs and users. A single check is a snapshot; tracking the same prompts every week shows the real trend, which is what serp.ac does.