Privacy Policy

Introduction

Classic Sudoku is committed to protecting your privacy. This Privacy Policy explains how we collect, use, and share information about you when you visit our website or play our Sudoku game. By using our services, you agree to the collection and use of information in accordance with this policy.

Information We Collect

We collect several types of information for various purposes to provide and improve our services to you.

Personal Information

We may collect personal information that you voluntarily provide to us when you:

  • Subscribe to our newsletter
  • Contact us with questions or feedback

The personal information we collect may include your email address and any other information you choose to provide.

Usage Data

When you access or use our services, we may automatically collect certain information about your device and usage patterns. This may include:

  • Your browser type and version
  • Your operating system
  • Your IP address
  • Pages you visit and the time spent on those pages
  • Game statistics and preferences (difficulty levels, play time)

Data Collection and Usage Table

Data Type Purpose Retention Period Legal Basis
Email Address Newsletter communication Until unsubscribe Consent
Game Statistics Improve game experience 12 months Legitimate Interest
Usage Data Analytics and service improvement 12 months Legitimate Interest
IP Address Security and fraud prevention 30 days Legal Obligation

How We Use Your Information

We use the information we collect for various purposes, including:

  • To provide and maintain our services
  • To notify you about changes to our services
  • To provide customer support
  • To gather analysis or valuable information so that we can improve our services
  • To monitor the usage of our services
  • To detect, prevent, and address technical issues
  • To send you newsletters and promotional communications (with your consent)

Third-Party Services

We may employ third-party companies and individuals to facilitate our services, provide services on our behalf, perform service-related services, or assist us in analyzing how our services are used. These third parties have access to your Personal Data only to perform these tasks on our behalf and are obligated not to disclose or use it for any other purpose.

Cloudflare

We use Cloudflare to provide security, performance optimization, and content delivery for our website. Cloudflare may collect and process certain information, including your IP address, browser information, and usage data. For more information, please see Cloudflare's Privacy Policy.

Plausible Analytics

We use Plausible Analytics to collect and analyze usage data about our website. Plausible Analytics is a privacy-focused analytics tool that does not use cookies and does not track individuals. For more information, please see Plausible Analytics' Privacy Policy.

California Consumer Privacy Act (CCPA) Compliance

We are committed to complying with the California Consumer Privacy Act (CCPA). As a California resident, you have the following rights:

Right to Know

You have the right to request information about the categories and specific pieces of personal information we have collected about you, the categories of sources from which we collected the information, the business or commercial purpose for collecting or selling the information, and the categories of third parties with whom we share the information.

Right to Delete

You have the right to request that we delete any personal information we have collected from you, subject to certain exceptions.

Right to Opt-Out

You have the right to opt-out of the sale of your personal information, although we do not sell personal information.

Right to Non-Discrimination

You have the right not to receive discriminatory treatment for exercising your CCPA rights.

To exercise any of these rights, please contact us at b17749122331@126.com. We will verify your request within 10 business days and respond within 45 business days.

Children's Privacy (COPPA Compliance)

Our services are not directed to children under the age of 13. We do not knowingly collect personally identifiable information from children under 13. If we discover that a child under 13 has provided us with personal information, we will delete such information from our servers immediately. If you are a parent or guardian and you are aware that your child has provided us with personal information, please contact us at b17749122331@126.com so that we can take appropriate action.

Data Security

We value your trust in providing us your personal information, thus we are striving to use commercially acceptable means of protecting it. But remember that no method of transmission over the internet, or method of electronic storage is 100% secure and reliable, and we cannot guarantee its absolute security.

Changes to This Privacy Policy

We may update our Privacy Policy from time to time. We will notify you of any changes by posting the new Privacy Policy on this page. You are advised to review this Privacy Policy periodically for any changes. Changes to this Privacy Policy are effective when they are posted on this page.

Contact Us

If you have any questions about this Privacy Policy, please contact us:

Email: b17749122331@126.com