Privacy Policy

Last updated: January 15, 2025

Welcome to Sudoku Master. This Privacy Policy describes how we collect, use, and share information when you visit or use our website located at sudokumaster.com (the "Site") and any related services, features, content, or applications we offer (collectively, the "Services").

By accessing or using our Services, you consent to the collection and use of information in accordance with this Privacy Policy. If you do not agree with our practices, please do not use our Services.

1. Information We Collect

1.1 Personal Information

When you visit our Site, we do not automatically collect personally identifiable information unless you choose to provide it to us. Personal information may include, but is not limited to:

  • Email address (when you contact us)
  • Any other information you voluntarily provide when communicating with us

1.2 Non-Personal Information

We automatically collect certain non-personal information when you visit our Site, including:

  • IP address
  • Browser type and version
  • Operating system
  • Referrer URL
  • Date and time of access
  • Pages viewed and time spent on pages
  • Game statistics (such as time played, difficulty level selected, and completion rates)

2. Data Collection and Use Table

Data Type Collection Method Purpose Retention Period
Email Address Voluntary submission via contact form To respond to inquiries and provide support 1 year after last communication
IP Address Automatically collected To analyze traffic and prevent abuse 30 days
Browser Information Automatically collected To improve compatibility and user experience 30 days
Game Statistics Automatically collected during gameplay To enhance gameplay and track performance 90 days
Cookies Automatically placed on device To remember preferences and session data Session duration or 1 year

3. How We Use Your Information

We use the information we collect for the following purposes:

  • To provide, maintain, and improve our Services
  • To personalize your experience on our Site
  • To respond to your inquiries and provide customer support
  • To monitor and analyze trends, usage, and activities in connection with our Services
  • To detect, prevent, and address technical issues
  • To comply with legal obligations

4. Cookies and Similar Technologies

We use cookies and similar tracking technologies to improve your browsing experience on our Site. Cookies are small data files that are placed on your device when you visit a website.

You can instruct your browser to refuse all cookies or to indicate when a cookie is being sent. However, if you do not accept cookies, you may not be able to use some portions of our Site.

5. Third-Party Services

We use third-party services to help us operate our Site and provide our Services. These third parties may have access to your information, but only to perform these tasks on our behalf and are obligated not to disclose or use it for any other purpose.

5.1 Cloudflare

We use Cloudflare to improve the security, performance, and reliability of our Site. Cloudflare may collect information such as IP addresses, browser information, and access times to protect against malicious activity and improve the delivery of our Services.

5.2 Plausible Analytics

We use Plausible Analytics for website traffic analysis. Plausible Analytics is a privacy-focused analytics service that collects aggregated data about how visitors interact with our Site. This data helps us understand usage patterns and improve our Services.

Plausible Analytics does not use cookies and does not track individuals across websites. The data collected is anonymized and cannot be used to identify specific users.

6. Children's Privacy

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 become aware that we have collected personal information from a child under 13 without verification of parental consent, we take steps to remove that information from our servers.

Under the Children's Online Privacy Protection Act (COPPA), we:

  • Do not collect personal information from children under 13
  • Do not allow children under 13 to create accounts
  • Do not target children under 13 with advertising
  • Take prompt action to delete any personal information collected from children under 13

7. California Consumer Privacy Act (CCPA) Rights

If you are a California resident, you have the following rights under the California Consumer Privacy Act (CCPA):

7.1 Right to Know

You have the right to request information about the categories and specific pieces of personal information we have collected about you in the past 12 months.

7.2 Right to Delete

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

7.3 Right to Opt-Out

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

7.4 Right to Non-Discrimination

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

7.5 How to Exercise Your CCPA Rights

To exercise your CCPA rights, please contact us at 18192199493@163.com with the subject line "CCPA Request." We will respond to your request within 45 days. We may require additional information to verify your identity before processing your request.

8. Data Security

We take reasonable measures to protect the information we collect from unauthorized access, use, or disclosure. However, no method of transmission over the Internet or electronic storage is 100% secure. Therefore, while we strive to use commercially acceptable means to protect your information, we cannot guarantee its absolute security.

9. Links to Other Websites

Our Site may contain links to other websites that are not operated by us. If you click on a third-party link, you will be directed to that third party's site. We strongly advise you to review the Privacy Policy of every site you visit.

We have no control over and assume no responsibility for the content, privacy policies, or practices of any third-party sites or services.

10. 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 and updating the "Last updated" date at the top of this Privacy Policy.

We encourage you to review this Privacy Policy periodically for any changes. Changes to this Privacy Policy are effective when they are posted on this page.

11. Contact Us

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

Email: 18192199493@163.com