Sudoku Introduction
This Cookie Policy explains how sudoku-online-puzzles.com (the "Site") uses cookies, local storage, and similar technologies. It should be read together with our Privacy Policy, which explains how we handle personal data more broadly.
What Cookies Are
Cookies are small text files stored on your device by your browser. They help websites remember settings, understand how visitors use pages, keep services working, and, where advertising is used, show and measure ads.
Similar technologies include local storage, session storage, pixels, tags, web beacons, and identifiers that may be used by browsers, analytics tools, advertising partners, or content delivery services.
How We Use Cookies and Similar Technologies
We use cookies and similar technologies for the following purposes:
- Essential functionality - to keep the Site working, remember basic preferences, support security, and make the games usable.
- Game preferences and local storage - to save puzzle progress, notes, timer state, theme choice, and other settings in your browser.
- Analytics - to understand which pages are useful, detect errors, improve performance, and make the Site easier to use.
- Advertising - if ads are displayed, advertising partners may use cookies and similar technologies to serve, personalize, limit, and measure ads.
Local Storage for Puzzle Features
Many Sudoku Online Puzzles features use browser storage instead of a user account. This can include saved puzzle progress, pencil marks, selected difficulty, completed puzzle information, timer state, display settings, and dark-mode preference.
This data is stored on your device. You can remove it by clearing site data in your browser. If you clear browser data, use private browsing, switch devices, or block storage, some puzzle progress and preferences may be lost.
Analytics Cookies
Analytics tools may collect information such as pages visited, approximate location, browser type, device type, referring page, time on page, and interactions with site features. We use this information to maintain and improve the Site.
Analytics information is generally reviewed in aggregated form. We do not use analytics cookies to ask you to register, build a player account, or sell your direct contact details.
Advertising Cookies
If we display advertising, third-party advertising partners, including Google, may use cookies, web beacons, IP addresses, device identifiers, and similar technologies to serve ads, measure ad performance, prevent fraud, and personalize ads where permitted by law and your consent choices.
Third parties may place and read cookies on your browser, or use web beacons and similar technologies to collect information as a result of ad serving on this Site.
You can learn more about how Google uses information from sites and apps that use its services at How Google uses data when you use our partners' sites or apps.
Your Cookie Choices
Where required, we will ask for your consent before using non-essential cookies such as analytics or advertising cookies. You can change or withdraw consent through the cookie controls shown on the Site, when available.
You can also control cookies through your browser settings. Most browsers let you block cookies, delete existing cookies, or set rules for specific sites. Browser controls vary by product, so check your browser's help pages for current instructions.
Blocking all cookies or storage may affect parts of the Site, including saved puzzle progress, preferences, analytics, ad personalization, and some interactive features.
Third-Party Cookies
Some cookies and similar technologies may be set by third parties whose services appear on or support the Site. These providers may include analytics services, advertising networks, hosting providers, content delivery networks, font providers, and security tools.
Third-party providers are responsible for their own cookie and privacy practices. Their use of information is governed by their own policies as well as applicable law.
Do Not Track
Some browsers offer a "Do Not Track" signal. There is no single industry standard for responding to this signal, so the Site may not respond to it automatically. You can still use browser cookie controls and consent choices to manage tracking technologies.
Updates to This Policy
We may update this Cookie Policy from time to time as our services, advertising partners, analytics tools, or legal requirements change. When we make changes, we will update the "Last updated" date at the top of this page.
Contact Us
If you have questions about this Cookie Policy or how we use cookies, please visit our contact page.