Privacy Policy

Last Updated: 4.11.2025

TL;DR

We collect only what we need to run the service. Your data stays in Europe (OVH servers in France). We don't sell your data to anyone. Third-party services are limited to authentication, payments, and notifications you configure.

1. Who We Are

Adblock Monitoring is a monitoring and analytics service that helps you track ad-blocker filter lists and visitor behavior. We're based in Berlin, Germany and process all data on servers hosted by OVH in France.

2. What Data We Collect

Account Information

When you sign up, we collect:

  • Email address
  • Name
  • Authentication data (managed by Clerk)

Billing Information

If you subscribe to a paid plan:

  • Payment details (credit card info is processed and stored by Stripe, not by us)
  • Billing address
  • Transaction history

Analytics Data (If You Use Our Tracking Script)

When visitors browse sites using our analytics script, we collect:

  • Daily visitor fingerprints based on browser characteristics
  • Ad-blocker detection results
  • Page views and timestamps

Important: Our analytics are privacy-first by design. No cookies, no IP addresses, no personal data. Fingerprints reset every 24 hours automatically. This is GDPR compliant without requiring consent banners.

Filter List Monitoring Data

  • Domains you configure for monitoring
  • Alert rules and notification preferences
  • Historical blocking data from public filter lists

Service Usage Data

  • Log files for debugging and security (IP addresses, browser info, timestamps)
  • Performance metrics
  • Error reports and performance monitoring (via Sentry and AppSignal in production)

3. How We Use Your Data

We use your information to:

  • Provide the monitoring and analytics services
  • Send you alerts when blocking rules change
  • Process payments and manage subscriptions
  • Respond to support requests
  • Improve the platform
  • Comply with legal requirements

We do not:

  • Sell your data to third parties
  • Use your data for advertising
  • Share your data except as described below

4. Where Your Data Is Stored

All application data, databases, and services are hosted on OVH servers in France. This includes:

  • PostgreSQL database
  • Elasticsearch indexes
  • Application servers
  • File storage (Cloudflare R2 for filter list archives)

Data stays in the EU and is subject to European data protection laws.

5. Third-Party Services We Use

Clerk (Authentication)

Manages user authentication and account security. Processes email addresses and authentication tokens.

Stripe (Payment Processing)

Handles all payment processing and stores your billing information. We never see your full credit card details.

Resend (Email Delivery)

Sends system emails, alerts, and notifications you've configured. Only receives email addresses you've added to your account.

Slack, Discord, Microsoft Teams (Optional Integrations)

If you connect these services for notifications, we send alerts to your configured channels. We only store the webhook URLs or API credentials you provide.

Crisp (Chat Support)

Powers the chat widget in the lower right corner. When you start a conversation, Crisp processes your messages and email address to provide support. We don't control what you share in chat, so avoid sending sensitive information.

Cloudflare R2 (File Storage)

Stores archived versions of filter lists for historical analysis. No personal data is stored here.

Sentry & AppSignal (Error Tracking & Performance Monitoring - Production Only)

We use Sentry and AppSignal to capture error reports and monitor application performance. This helps us fix bugs and optimize the platform. May include request URLs and browser information, but we filter out sensitive data.

6. Cookies and Tracking

We use minimal cookies:

  • Session cookies: Required for authentication (managed by Clerk)
  • Preference cookies: Remember your dashboard settings

We do not use advertising cookies or third-party tracking scripts.

Our analytics tracking script (the one you can install on your sites) uses no cookies at all. It creates daily browser fingerprints that reset automatically.

7. Your Rights

Under GDPR, you have the right to:

  • Access your data
  • Correct inaccurate information
  • Delete your account and data
  • Export your data in a machine-readable format
  • Opt out of marketing emails (you can unsubscribe from any email)

To exercise these rights, contact us at hello@adblockmonitoring.com or use the account settings page.

8. Data Retention

  • Account data: Retained while your account is active
  • Analytics data: Retained according to your subscription plan
  • Logs: Kept for 90 days for security and debugging
  • Deleted accounts: Data is permanently deleted within 30 days

9. Security

We take security seriously:

  • All connections use HTTPS/TLS encryption
  • Database backups are encrypted
  • Access to production systems is restricted and logged
  • We monitor for security incidents

No security measures are perfect. If we discover a breach, we'll notify affected users expeditiously and comply with all legal requirements.

10. Data Transfers

Your data is processed in the EU (OVH France). Some third-party services may process data outside the EU:

  • Clerk (US-based, EU data centers available)
  • Stripe (US-based, GDPR compliant)
  • Resend (US-based, GDPR compliant)

These services are bound by standard contractual clauses or Privacy Shield successor frameworks.

11. Changes to This Policy

We may update this policy occasionally. We'll notify you of significant changes via email or through the dashboard. Continued use of the service after changes means you accept the updated policy.

12. Contact Us

Questions about this privacy policy or your data?

Email: hello@adblockmonitoring.com


Data Controller:

Philipp Defner
10115 Berlin
Germany