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Privacy Policy

Last updated

I. Information Collection

We only collect the personal information necessary for account registration, including username, email address, and encrypted password. We do not collect personal information unrelated to website functionality.

II. Use of Information

Collected information is used solely to provide and improve website services, including account management, personalized recommendations, and user support.

  • Account Management: Create and manage your user account, provide login and authentication services.
  • Personalized Recommendations: Recommend suitable character and word content based on your learning history.
  • User Support: Respond to your feedback, questions, and support requests.
  • Service Improvement: Analyze usage data to optimize website functionality and user experience.

III. Cookie Usage

We use essential cookies to maintain your login status and language preferences. We do not use third-party tracking cookies or advertising cookies.

  • Session Cookies: Maintain your login state, automatically cleared when you close the browser.
  • Preference Cookies: Remember your language selection and theme preferences.
  • Security Cookies: Protect your account security against malicious access.
  • You can manage or disable cookies through browser settings, though this may affect normal use of some features.

IV. Data Storage

Your personal information is stored in a Cloudflare D1 database with industry-standard encryption. We take reasonable security measures to protect your data.

  • Encrypted Transmission: All data transmission is conducted via HTTPS encrypted protocol.
  • Access Control: Strict database access permissions, only authorized personnel may access.
  • Regular Audits: Regular security audits and vulnerability assessments.

V. Data Sharing

We do not sell, trade, or otherwise transfer your personal information to third parties. We may disclose necessary information under the following circumstances:

  • After obtaining your explicit consent
  • Mandatory requirements by law, regulation, or judicial authorities
  • Necessary to protect our legitimate rights or public safety

We require all partners to strictly comply with data protection agreements.

VI. User Rights

You have the following rights regarding your personal information:

  • Right of Access: You can view your personal information we have collected at any time.
  • Right of Rectification: You can update or correct inaccurate personal information.
  • Right of Erasure: You can request deletion of your account and related data.
  • Data Export: You can request a copy of your personal data.

To exercise the above rights, please contact us .

VII. Data Retention

We retain your personal information as long as your account remains active. After account deletion, we will delete or anonymize your data within a reasonable timeframe:

  • Active Accounts: Keep complete personal information for service provision.
  • Deleted Accounts: Complete data deletion or anonymization within 90 days.
  • Legal Requirements: Retain necessary data as required by law.

Data cannot be recovered after deletion. Please proceed with caution.

VIII. Protection of Minors

Our services are not directed at children under 13. We do not knowingly collect personal information from minors.

  • Age Restriction: Registered users must be at least 13 years old.
  • Discovery Handling: If we discover we have collected information from a minor, we will delete it immediately.

If you are a guardian and discover unauthorized use of our service, please contact us immediately.

IX. Third-Party Services

Our website may contain links to third-party websites. We are not responsible for their privacy practices; we recommend reviewing their respective privacy policies.

X. Policy Updates

We may update this privacy policy from time to time. We will notify you of material changes via website announcement or email. Continued use of our services constitutes acceptance of the updated policy.

XI. Contact Us

If you have any questions or concerns about this privacy policy, please contact us through:

  • Through our contact page to submit a feedback form
  • Send email to hello@hanzinihao.com