This Privacy Policy explains how Learn Graph Theory ("we", "us", or "our"), operated by Hadjoudj Mohammed Islam, collects, uses, and safeguards your information when you visit learngraphtheory.org (the "Service"). By using the Service, you agree to the practices described below.
1. Information We Collect
Information you provide
When you create an account or sign in, we collect basic account information such as your name and email address. This is handled through our authentication providers (see "Third-Party Services" below). If you save or import graphs, that content is stored so it can be synced to your account.
Information collected automatically
Like most websites, we automatically collect limited technical and usage data, which may include:
- Device and browser type, screen size, and operating system;
- Pages visited, features used, and time spent on the Service;
- Approximate location derived from your IP address;
- Referring website and basic interaction events.
2. How We Use Your Information
- To provide, operate, and maintain the Service;
- To authenticate you and sync your saved work across devices;
- To understand how the Service is used so we can improve it;
- To detect, prevent, and address technical issues or abuse;
- To communicate with you about important changes when necessary.
We do not sell your personal information.
3. Cookies and Analytics
We use cookies and similar technologies for essential functionality (such as keeping you signed in) and for privacy-conscious analytics. Analytics help us measure aggregate traffic and feature usage. You can control cookies through your browser settings; disabling them may affect some functionality.
4. Third-Party Services
We rely on trusted third-party providers to operate the Service. Each processes data under its own privacy policy:
- Google Analytics — aggregate usage analytics;
- Umami — privacy-focused, cookieless analytics;
- Supabase and Firebase — authentication, database, and cloud sync;
- Google Fonts — web font delivery.
5. Data Retention and Security
We retain personal data only for as long as necessary to provide the Service or as required by law. We apply reasonable technical and organizational measures to protect your data, but no method of transmission or storage is completely secure, and we cannot guarantee absolute security.
6. Your Rights
Depending on your location (for example, under the GDPR or CCPA), you may have the right to access, correct, export, or delete your personal data, and to object to or restrict certain processing. To exercise these rights, contact us at the address below. You may also delete your account at any time.
7. International Data Transfers
Your information may be processed and stored in countries other than your own. Where required, we take steps to ensure appropriate safeguards are in place for such transfers.
8. Children's Privacy
The Service is intended for a general, educational audience and is not directed to children under 13 (or the minimum age required in your jurisdiction). We do not knowingly collect personal information from children. If you believe a child has provided us data, please contact us so we can remove it.
9. Changes to This Policy
We may update this Privacy Policy from time to time. Material changes will be reflected by updating the "Last updated" date above, and where appropriate we will provide additional notice.
10. Contact Us
If you have questions about this Privacy Policy or your data, contact us at hadjoudj.mohammed.or@gmail.com.