PRIVACY NOTICE

FK Claude privacy notice

A plain data-flow explanation: what the check uses for the current session, what email unlock submits, and what this site does not retain.

Information processed in the browser session

The check reads browser language, timezone, version, platform, screen, hardware hints, storage capability, WebRTC, canvas, WebGL, and font availability through normal web APIs. These values generate the result for the current page.

  • Raw WebRTC ICE addresses are used briefly inside the browser to compare against the page exit IP; they are not sent to the detection API, email-unlock request, local storage, or result image.
  • No stored canvas image or stable fingerprint hash.
  • No GPS or precise browser geolocation request.
  • No account password, OS account, complete installed-app list, or other application data.

Network lookups and third-party services

To identify the current exit network, the page may request IPWho.is, ipapi.co, ipify, and the site's configured network-intelligence endpoint as fallback sources. The WebRTC check also contacts Google's public STUN service to gather ICE candidates. Any network or STUN service naturally sees the requesting IP and may retain access logs under its own privacy policy.

The site retains only summary fields such as WebRTC comparison status, candidate types, and counts. The result masks the IP, and neither the complete exit IP nor raw ICE addresses are included in detection or email-unlock submissions.

What email unlock submits

After a user voluntarily enters an email, the page sends the email, timestamp, interface language, overall risk level, network category, proxy category, country/city, and completeness metadata to the configured FlowLab Google Apps Script endpoint.

The submission does not include the complete exit IP, canvas image, raw WebGL data, font list, or the 21 raw check details. The email and coarse metadata support the unlock record and follow-up communication and are retained until no longer needed or deletion is requested.

Local storage

  • localStorage stores the language choice and first-used language.
  • sessionStorage stores the unlock email for the current tab session.
  • The site does not use local storage for result history or a cross-session device fingerprint.

User choice and contact

The free basic result does not require an email. If you do not want requests sent to external network lookup or STUN services, do not start the check. For a submitted email or deletion request, use the public contact channel at FlowLab.

Cloudflare hosts and protects the site and may process standard access logs under its policies. This notice was last verified on 2026-09-08.

Check the current browser environment

Return to FK Claude and review 21 browser-visible signals for free. The result is a self-check reference only.

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