SubSeed: See the Hidden Search Queries ChatGPT Makes

SubSeed is a Chrome extension and SEO tool that captures query fan-out, the hidden Google searches ChatGPT runs behind the scenes when it browses the web. When ChatGPT answers a question, it does not run one search. It expands your prompt into 8 to 15 parallel sub-queries that users never see. SubSeed extracts those queries, the AI reasoning, and the source citations from any ChatGPT conversation, then enriches them with real SEO data: search volume, CPC, keyword difficulty, and SERP rankings.

Built for SEO professionals, content marketers, and GEO and AEO practitioners who need to know what AI systems actually search for. Free plan includes up to 3 extractions per day. Pro is 29 USD per month or 290 USD per year for unlimited extractions, SERP analysis, AI visibility scores, content briefs, and report exports.

What SubSeed does

• Captures every hidden fan-out query ChatGPT generates during a browsing session
• Enriches each query with search volume, CPC, keyword difficulty, and SERP data
• Tracks an AI Visibility Score showing how often your domain gets cited by ChatGPT
• Reveals the keywords AI systems search that traditional tools like Ahrefs and Semrush cannot see

Site pages

• Home
• Blog
• FAQ
• Changelog
• About the author, Jim Hunt
• Privacy Policy
• Terms of Service
• Install the free Chrome extension

Latest articles on AI search and query fan-out

• ChatGPT Free Doesn't Run Query Fan-Out. Plus Does.
• ChatGPT Ignores 85% of What It Reads. Here's What Makes the Cut
• Google Rankings Still Control What ChatGPT Cites
• 95% of ChatGPT's Searches Have Zero Search Volume
• Domain Authority Doesn't Decide Who Gets Cited by ChatGPT
• How to Use Query Fan-Out Data for Keyword Research
• The Hidden Keywords ChatGPT Uses That You Never See
• Query Fan-Out vs Traditional Search: Why AI Searches Differently
• How Many Searches Does ChatGPT Actually Run Per Question?
• What is Query Fan-Out? The Hidden Search Technique Behind AI Answers