Privacy Policy
This Privacy Policy reflects our procedures regarding the use of your personal information. It explains the types of information we collect and record to provide our service, how we use it, your privacy rights, the legal frameworks followed by our site, and a detailed explanation of how the law protects you.
By continuing to use our service, you consent to the collection and use of your personal data in agreement with this document.
Data Controller
Our sudoku.online website is administered by us, and we function as its data controller. We oversee the collection and management of your personal information and ensure it is protected.
IndexedDB and localStorage Usage
IndexedDB and localStorage are client-side storage technologies that keep data in your web browser. LocalStorage is a synchronous storage system best for small amounts of information, while IndexedDB is an asynchronous database suited for larger, structured data sets. Both enable data to be queried and transactions to occur directly on the client side. The primary purpose of using IndexedDB and localStorage is to store information necessary for our site to function properly.
For example, using these technologies helps the site load faster and allows your preferences to be saved in your browser. By keeping certain data locally, the service can run without contacting our server every time it needs something. Data remains on your device until it’s no longer required for our services or you choose to delete it.
Importantly, IndexedDB and localStorage themselves do not collect or transmit any of your personal information to us. All data saved using these methods stays on your device to improve performance and provide a more personalized experience.
Cookies and Similar Technologies
Similar to other websites, our site uses cookies and similar technologies to track your activity and provide a better service. These technologies include:
Cookies — files placed on your computer or mobile device. Some cookies are essential for the operation of our service, and some are optional. However, if you refuse cookies, some parts of our website may not work appropriately.
Cookies can be divided into Session Cookies and Persistent Cookies. Session cookies are stored during the time you use our service. If you close your web browser, session cookies will be deleted. Persistent cookies are stored in your device even if you go offline or close your web browser.
Cookies on our site can be further classified into three categories, and each of them is either session or persistent.
Necessary cookies — session cookies that are fundamental to providing our service. They identify legitimate users and disallow fraudulent use of our website.Functionality cookies — persistent cookies intended to store choices you make on our site. Its purpose is to remember, for example, the language you set your profile to or some of your login details.Analytics cookies — session cookies that provide statistics about interaction on the site. It tracks data like the geographical location of users, average time spent on pages, and other metrics intended to analyze the performance of the site. They are also used to customize advertisement campaigns for each user.Notice acceptance cookies — persistent. Their purpose is to record whether a certain user has accepted the use of cookies on our website (and which ones were accepted).Web beacons — small files located in certain parts of our website. They are also called pixel tags, single-pixel gifs, or clear gifs. The purpose of web beacons is to signal to us about users’ behavior on our site. It allows us to count how many users visit certain pages and other statistics related to the performance and popularity of our service.
Data Retention
Your data will be stored throughout the time your account is active and for up to one year after you delete your account, unless the law requires it to be kept for a longer period.
Managing Your Privacy Preferences
Cookies and other technologies used for tracking and storing data on your device are optional. You can control which cookies you agree to, and you can opt out of IndexedDB and localStorage. You can disable tracking and storage technologies by changing the settings of your browser. There is also a mandatory pop-up regarding cookies, where you can accept or deny the use of non-essential cookies on your device.
However, important functions of our service may not be available with cookies and localStorage technologies disabled. Features like saving the progress of the game or language and sound preferences require cookies to function. Instead, there’s the possibility to disallow third-party data collection. This way, cookies are only used to enhance your in-game dynamics.
Children’s Privacy
We do not intentionally gather personal details from children under the age of 13. In line with GDPR and similar legislation, users aged 13 through 16 are required to have parental or guardian consent before they use the site.
Third-Party Data Processing
Some of our service providers may have access to your information. These third-party agents may collect and process your information for analytics and advertisement purposes. Our Privacy Policy does not apply to their services, and each of them has its respective Privacy Policy detailing how they use the data gathered and their practices on cookie management. We advise you to consult the Privacy Policies of all websites you interact with, as further usage of the site indicates agreement with its policies.
Third-party agents may use your data for advertising purposes. In order to collect your data, they may employ cookies, web beacons, and other tracking technologies, similar to technologies we utilize ourselves. Data collected may be used to personalize and track the effectiveness of advertisement campaigns by third-party services, like advertisement networks and web analytics tools.
The use of third-party service providers is intended to provide a better service to you, with your consent. Providers are evaluated and approved by us and will only access the information we consider necessary for providing their service appropriately.
Although our Privacy Policy does not apply to their services, we require third-party providers to comply with any applicable law and regulation pertaining to the usage of data and engage in privacy policies compatible with ours.
Our third-party partners consist of:
Google Analytics,various advertising networks (e.g., Google Ads and Meta),hosting providers,other types of IT service providers.
Legal Basis for Processing Personal Data
In processing your personal data, we comply with the existing applicable legal frameworks, such as GDPR, CCPA, and CalOPPA. This segment explains the legal coverage of these laws, as well as your rights and responsibilities.
If you intend to exercise any rights provided by applicable laws (including GDPR and CCPA), send us your request via email. We may require identity verification before handling your request. We strive to review each request within 30 days of receiving it, unless a different timeframe is legally required.
GDPR
According to the GDPR, we must have your consent to collect and process your personal data. We also process your data for additional reasons such as complying with laws, safeguarding your and the public’s interests, and pursuing our service’s legitimate interests. Examples of these interests are following regulatory rules and enhancing our site’s performance. We take care to keep your personal data confidential and to protect your rights.
The right to access your personal information.The right to access your personal information.The right to object to the processing of your data.The right to have your personal data erased.The right to data portability (to have your data transferred).The right to withdraw consent that you have given.
You can exercise any of these rights by reaching out to us. We will verify your identity before providing any information, using appropriate verification methods.
Our company is not presently required to appoint a Data Protection Officer under GDPR (Article 37). If that changes, we will update this privacy policy with the new information.
CCPA
The CCPA (California Consumer Privacy Act) gives privacy rights to California residents. The following provisions apply only to users in California. The law defines 11 categories of personal information that businesses may collect.
We provide all 11 categories below for transparency, although we do not necessarily collect information from each category.
Identifiers: such as your name, IP address, postal address, and similar identifiers. Personal information under California Customer Records law: like your signature, Social Security number, address, etc. Protected classes (per California or U.S. law): for example, your age, race, national origin, religion, citizenship, and similar info. Commercial information: including purchase records or histories. Biometric information: e.g., fingerprints, voiceprints, sleep data, health data, and comparable information. Internet or electronic activity: records of your activity on our site or other online services. Geolocation data: your precise or approximate location data. Sensory information: audio or visual materials (such as recordings). Professional/employment information: job history, performance evaluations, etc. Non-public education information: education records (grades, schedules, and similar). Inferences from personal data: derived information used to create a profile about you (for instance, preferences or characteristics).
This personal information can be collected directly from you (for example, via forms on our service), by observing your interactions on our site, or via third-party service providers.
If you live in California, the California Consumer Privacy Act gives you the following rights:
You can find out what personal data we collect about you. You can request access to the personal data we’ve gathered. You can opt out of having your personal data sold. You have the right to ask us to delete your personal information. You are protected from any discrimination for using your privacy rights. You can ask us to fix any inaccurate personal details we have about you. You have the right to limit how your personal information is used or shared.
Changes to This Privacy Policy
This Privacy Policy is subject to changes in the future to keep up to date with changes on our site and the service we provide, as well as with new legal requirements.
Any updates will be published on the website, and we will adapt the publication date to reflect the latest changes. Continued use of our site after any Privacy Policy modification implies the acceptance of the latest version.
We may store your information on servers across the EU, the U.S., or other regions. If that data is transferred outside the EEA, we use GDPR-mandated protections like Standard Contractual Clauses according to Articles 45 and 46.
User Consent and Agreement
By using our service, you acknowledge and agree to the terms stated in this Privacy Policy. If you don’t consent to any content of this document, you must refrain from using our website.
If local laws pertaining to you contradict or prohibit in any way any segment of this Privacy Policy, you must stop using the site immediately.
We take security seriously and protect personal data against unauthorized access, against potential loss, and against unlawful processing.
Contact Information
Please email us at [email protected] if you have any concerns or questions about your data privacy rights.