Privacy Policy

Account Data

When you create an account, we collect:

• Name and email address
• Password (hashed, never stored in plain text)
• Stripe customer ID and subscription details (managed by Stripe)

Browser Fingerprint Data

When you run a check (free or monitored), we collect browser signals including:

• Navigator properties (User-Agent, platform, language, hardware concurrency, device memory)
• Screen dimensions and display properties
• WebGL renderer and vendor information
• Canvas and audio fingerprint hashes (not raw pixel data)
• HTTP headers (User-Agent, Accept-Language, Sec-CH-UA)
• Timezone and locale information
• Browser API availability and feature support

Usage Data

• IP address (used for free check rate limiting, not stored long-term)
• Check timestamps and scores

Fingerprint analysis

Browser signals are analyzed server-side to produce a stealth score and issue list. This is the core function of the Service.

Monitoring

For paid users, check results are stored to track scores over time and trigger alerts.

Rate limiting

IP addresses are used to enforce free-tier limits (10 checks/day). IPs are not stored with check results.

Email

We send transactional emails (account verification, password reset, score drop alerts). We do not send marketing emails.

When you delete your account, all associated data (profiles, checks, results) is permanently deleted.

We do not sell your data. We share data only with:

Stripe

For payment processing. See Stripe's Privacy Policy.

Email provider

For transactional email delivery.

Webhooks

Business plan users may configure webhook URLs. Check data is sent to URLs you specify.

We use a session cookie for authentication. We do not use tracking cookies, advertising cookies, or third-party analytics.

All data is transmitted over HTTPS. Passwords are hashed using bcrypt. Payment data is handled entirely by Stripe and never touches our servers.

You have the right to:

Access

View your check history and profile data in the dashboard.

Delete

Delete your account and all associated data from your profile settings.

Export

Request an export of your data by contacting us.

Correct

Update your account information from your profile settings.

The Service is not directed at children under 16. We do not knowingly collect data from children.

We may update this policy. Material changes will be communicated via email to registered users.

Privacy questions? Email us at .