Privacy Policy
Last updated: June 2026
Information We Collect
When you use NerdTools, we may collect:
- Query data: The domains, IPs, and URLs you scan are processed in real-time to provide results.
- Usage data: Anonymised analytics such as page views, feature usage, browser or device details, referrers, approximate location derived from IP address, and session replay data, including public scan result pages, to improve our service.
How We Use Your Information
- To provide and improve our network diagnostic tools
- To use anonymised analytics and masked session replay to understand product usage, diagnose broken flows, and improve the interface.
- To display aggregated statistics (e.g., most scanned domains)
Data Retention
Scan queries may be logged temporarily for performance monitoring. We do not permanently store the detailed results of your scans.
Third-Party Services
We use third-party services for hosting, infrastructure, analytics, and session replay. For example, PostHog EU Cloud may process anonymised product analytics, public scan result page content, and replay data with form inputs and sensitive controls masked or blocked. We do not use PostHog for behavioral advertising, and we do not intentionally send passwords, API tokens, or Turnstile tokens to PostHog.
Cookies
We use essential cookies to maintain sessions and preferences. Analytics cookies or local storage may be used to support anonymised analytics and masked session replay. We do not use tracking cookies for advertising purposes.
Your Rights
You may contact us with privacy-related questions or data requests. EU users have additional rights under GDPR.
Contact
For privacy-related questions, please visit our Contact page.