Privacy Policy
This policy explains what information vSudoku (vsudoku.com) collects, how it is used, and the choices you have. We keep it in plain language on purpose.
Effective date: October 3, 2026
1. Who we are
vSudoku is a free online Sudoku website available at https://vsudoku.com. In this policy, “we”, “us” and “our” refer to the operators of vSudoku. If you have any question about this policy, you can reach us through our contact page.
2. Information we collect
We keep data collection to a minimum. The site works without you creating an account.
Information you provide
If you contact us by email or through the contact form, we receive the information you choose to send — typically your name, email address and the content of your message. We use this only to reply to you.
Information collected automatically
Like most websites, our servers and our analytics and advertising partners may automatically record standard technical information when you visit, such as your browser type, device type, approximate location derived from your IP address, the pages you view, and the date and time of your visit. This helps us understand how the site is used and keep it running reliably.
Game progress stored on your device
Your current puzzle and preferences may be stored locally in your browser so the game behaves well. This information stays on your device and is not sent to us.
3. Cookies and similar technologies
A cookie is a small text file that a website stores in your browser. We and our partners use cookies and similar technologies for a few purposes:
- Essential — to make the site function correctly.
- Analytics — to understand, in aggregate, how visitors use the site so we can improve it.
- Advertising — to show ads and, where permitted, to make them more relevant and to measure their performance.
You can control or delete cookies through your browser settings. Blocking some cookies may affect how parts of the site work.
4. Advertising and Google AdSense
We use third-party advertising companies, including Google, to serve ads when you visit the site. These companies may use cookies and device identifiers to serve ads based on your visits to this and other websites.
- Google, as a third-party vendor, uses cookies to serve ads on our site. Google’s use of advertising cookies enables it and its partners to serve ads to you based on your visit to our site and/or other sites on the internet.
- You may opt out of personalised advertising by visiting Google Ads Settings.
- You can also opt out of a third-party vendor’s use of cookies for personalised advertising by visiting www.aboutads.info.
For more information on how Google uses data when you use our site, see Google’s Privacy & Terms.
5. Consent for visitors in the EEA, UK and other regions
Where required by law, we ask for your consent before setting non-essential cookies, including advertising cookies. If you are visiting from the European Economic Area, the United Kingdom, or another region with similar rules, you will see a consent notice the first time you visit, presented through a certified Consent Management Platform that meets Google’s consent requirements. You can accept, reject, or customise your choices there, and you can change them at any time using your browser controls or the opt-out links above. Until consent is given, our advertising partners are instructed to serve only non-personalised ads where that option applies.
6. How we use information
We use the information described above to:
- operate, maintain and improve the website and the game;
- respond to your messages and support requests;
- understand usage trends in aggregate;
- display and measure advertising; and
- protect the site against abuse, fraud and technical problems.
7. Sharing of information
We do not sell your personal information. We share information only with service providers who help us run the site (such as hosting, analytics and advertising partners), and only as needed for them to perform those services, or where required by law.
8. Data retention
We keep contact messages only as long as needed to handle your request. Technical and analytics data is retained in aggregate or for the limited periods set by our service providers.
9. Children’s privacy
vSudoku is a general-audience site and is suitable for all ages, but it is not directed at children under 13, and we do not knowingly collect personal information from them. If you believe a child has provided us personal information, please contact us and we will remove it.
10. Your rights
Depending on where you live, you may have rights over your personal information. Under the EU and UK General Data Protection Regulation (GDPR), these include the right to access, correct, delete, restrict, or object to the processing of your data, and the right to data portability. Under the California Consumer Privacy Act (CCPA), California residents have the right to know what personal information is collected, to request its deletion, and to opt out of its sale — and, as stated above, we do not sell personal information. To exercise any of these rights, contact us using the details below and we will respond as required by applicable law.
11. Security
We take reasonable technical and organisational measures to protect information. No method of transmission over the internet is completely secure, however, so we cannot guarantee absolute security.
12. Links to other sites
Our site may link to other websites that we do not control. This policy does not apply to those sites, and we encourage you to read their privacy policies.
13. Changes to this policy
We may update this policy from time to time. When we do, we will revise the effective date at the top of this page. Significant changes will be made clear on the site.
14. Contact
If you have questions about this Privacy Policy or how your information is handled, please email [email protected] or use our contact page.