Privacy Policy

Last updated: March 28, 2026

Introduction

Welcome to Sudoku Online Puzzles ("we", "us", or "our"). We respect your privacy and are committed to protecting your personal data. This privacy policy explains how we collect, use, and safeguard information when you visit sudoku-online-puzzles.com (the "Site").

Information We Collect

Information You Provide

We do not require registration to play our games. If you contact us through our contact form, we collect your name, email address, and message content solely to respond to your inquiry.

Automatically Collected Information

When you visit the Site, we may automatically collect:

  • Usage data — pages visited, time spent on pages, click patterns, and referring URLs.
  • Device information — browser type, operating system, screen resolution, and language preference.
  • IP address — used for approximate geographic location (country/region level) and security purposes.

Local Storage

Our games use your browser's local storage to save your game progress, preferences, and settings (such as difficulty level and timer state). This data stays on your device and is never transmitted to our servers.

Cookies

We use cookies and similar technologies for:

  • Essential cookies — required for the Site to function properly.
  • Analytics cookies — help us understand how visitors use the Site so we can improve it. We use privacy-friendly analytics that do not track you across other websites.
  • Advertising cookies — if we display ads, our advertising partners may use cookies to show relevant ads. These third-party cookies are governed by the respective partners' privacy policies.

You can manage or disable cookies through your browser settings. Disabling cookies may affect some Site functionality.

How We Use Your Information

We use collected information to:

  • Provide and maintain the Site and its games.
  • Analyze usage patterns to improve the user experience.
  • Respond to your inquiries or support requests.
  • Detect and prevent fraud, spam, or abuse.
  • Comply with legal obligations.

Third-Party Services

We may use third-party services that collect information on our behalf:

  • Analytics providers — to measure site traffic and usage.
  • Advertising networks — to serve and measure ads, if applicable.
  • Content delivery networks (CDNs) — to serve fonts, stylesheets, and scripts efficiently.

These providers have their own privacy policies governing their use of your data.

Data Retention

We retain automatically collected data only as long as needed for analytics and security purposes. Contact form submissions are retained until your inquiry is resolved, then deleted within 90 days.

Your Rights

Depending on your location, you may have the right to:

  • Access the personal data we hold about you.
  • Request correction or deletion of your data.
  • Object to or restrict processing of your data.
  • Request data portability.
  • Withdraw consent at any time (where processing is based on consent).

To exercise any of these rights, please contact us.

Children's Privacy

Our Site is not directed at children under 13 (or under 16 in the EEA). We do not knowingly collect personal information from children. If you believe a child has provided us with personal data, please contact us and we will delete it promptly.

Security

We implement appropriate technical and organizational measures to protect your data. However, no method of transmission over the internet is 100% secure, and we cannot guarantee absolute security.

International Transfers

Your data may be processed in countries outside your own. We ensure appropriate safeguards are in place when transferring data internationally.

Changes to This Policy

We may update this privacy policy from time to time. Changes will be posted on this page with an updated "Last updated" date. We encourage you to review this policy periodically.

Contact Us

If you have questions about this privacy policy or our data practices, please visit our contact page.