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Privacy notice for the Query Fan-Out Gap Analyser — a bring-your-own-key (BYOK) utility published on richvoller.com.

Last updated: June 2026

Summary

The Query Fan-Out Gap Analyser is a bring-your-own-key (BYOK) tool. We do not run user accounts, we do not use analytics or advertising trackers on the tool itself, and we do not store your queries, keywords, or API keys on our servers or in any database.

What we store

  • API keys (your browser only): If you enter OpenAI, Perplexity, or DataForSEO credentials in Settings, they are saved in your browser's localStorage so you do not have to re-enter them each visit. They are never written to our servers.
  • Work in progress (your browser only): Query pools, clusters, and analysis results live in page memory while you use the tool. They are lost on refresh unless you export them.
  • Our servers: We do not persist user content. API routes process requests in memory and discard data when the request completes.

What is sent to third parties

When you run an action, your browser sends the minimum credentials needed for that action to our API routes. Our server forwards requests to the provider you chose, using your own API keys:

  • OpenAI — query text for embeddings and brief generation; scraped page text (up to ~20,000 characters) when you run gap analysis.
  • Perplexity — seed keywords when you use fan-out extraction.
  • DataForSEO (optional) — seed keywords if you use that provider instead of Perplexity.

Those providers process data under their own terms and privacy policies. You are responsible for your accounts with them.

Hosting

The tool is hosted on Vercel. Standard request metadata (such as IP address and user agent) may appear in hosting logs for security and operations. We do not use this data for marketing.

Lawful basis (GDPR)

We process the minimum data needed to provide the tool (legitimate interest in operating a free utility). We do not sell personal data or use it for advertising. Keywords and queries you enter may constitute personal data if they relate to an identifiable person; you control what you submit.

Your choices

  • Clear API keys: Settings → Clear all removes keys from your browser.
  • Clear browser data: Removing site data for the tool origin deletes stored keys and any other local storage.
  • Export: Download your results as CSV or JSON before leaving the page.

Because we do not store user content server-side, there is no server-held data to request or erase beyond standard hosting logs managed by our host.

Security

Traffic is encrypted in transit (HTTPS). API keys travel only between your browser and our API routes, then onward to the provider you selected. Avoid using the tool on shared or untrusted devices if your keys are saved locally.

Contact

For privacy questions about this tool, contact [email protected] or use the contact form on this site.