Privacy Policy

Last updated: October 30, 2026

Hard Math operates hard-math.com, an educational website offering math practice, answer explanations, and study materials. In this policy, “Hard Math,” “we,” “us,” and “our” refer to the website administration responsible for its operation.

This policy explains what information is processed, why it is used, which service providers may receive it, and the choices available to you. You can use our main educational materials without registering an account. Technical information may still be processed when you visit the website.

For privacy questions or requests, email admin@hard-math.com.

1. Information processed when you use the website

Our servers and the services used to deliver, protect, measure, and support the website may process the following information:

IP address and approximate location, such as country or city, derived from technical information;
browser, operating system, device type, language settings, and screen characteristics;
pages and resources requested, referring pages, and traffic sources;
visit times, page views, session information, and interactions with website content;
technical errors, security events, and information needed to detect automated or abusive traffic;
cookie identifiers, consent preferences, and other online identifiers, depending on the service and your settings.

The information available depends on the page, service configuration, browser settings, and applicable privacy choices. IP addresses and online identifiers can be personal data under applicable law even when we do not know your name.

Some practice pages save recent test results in your browser using local storage so that you can review them on the same device. You can remove those locally saved results by clearing Hard Math’s site data in your browser. This local history does not require a registered account.

If you email us, we receive your email address, message, and any information or attachments you choose to send. We use this information to handle your inquiry and related correspondence. Please avoid sending sensitive information that is unnecessary for your request.

2. How and why information is used

We use information for the following purposes:

Website operation: delivering pages, running practice features, and displaying educational content;
Security and reliability: investigating errors, preventing misuse, and protecting the website;
Analytics: understanding traffic, navigation, engagement, and website performance;
Advertising: supporting ad delivery, measurement, personalization where permitted, and invalid-traffic prevention;
Communication: responding to questions, privacy requests, and reports of content or technical problems;
Legal obligations: complying with applicable requirements and responding to valid legal requests.

Where a legal basis is required, operational security and responding to inquiries are generally based on our legitimate interests in maintaining a useful, secure website and communicating with visitors. Analytics, advertising cookies, and ad personalization rely on consent where required by applicable law. Processing necessary to meet a legal requirement is based on that obligation.

3. Cookies and similar technologies

Cookies are small files stored by your browser. Websites and their service providers may also use local storage, pixels, tags, scripts, or similar technologies to store preferences, measure activity, and support website functions.

Necessary technologies

These support functions such as website security, traffic management, and remembering privacy choices. Their use depends on the functions needed for your visit.

Analytics technologies

These help measure visits and interactions so that we can improve content, navigation, and performance. Hard Math uses Google Analytics as described below.

Advertising technologies

These support advertising, including ad selection, delivery, frequency limits, measurement, and fraud prevention. Some uses involve personalized advertising and are subject to applicable consent requirements and user preferences.

Cookies may last for a browsing session or remain until they expire or are deleted. Browser controls and other available privacy choices are explained in section 6.

4. Google Analytics

Hard Math uses Google Analytics 4, a service provided by Google, to understand how visitors find and use the website.

Depending on configuration and privacy choices, Google Analytics may process page views, engagement events, traffic sources, approximate location, browser and device characteristics, and online identifiers. We use the resulting reports to assess content performance, identify navigation problems, and improve the learning experience.

Google processes information under its applicable service terms and privacy documentation. Learn more in Google’s Privacy Policy and Google’s explanation of data use on partner websites and apps.

Google also offers a Google Analytics opt-out browser add-on for supported browsers. This add-on does not control separate server logs or advertising services.

5. Google AdSense and advertising partners

Hard Math uses Google AdSense technology to support advertising. Ad availability and the way ads are served depend on service availability, website settings, your location, and applicable privacy choices.

Third-party advertising providers, including Google, may set or read cookies to select ads using information about earlier visits to Hard Math and other websites. Google’s advertising cookies allow Google and its partners to use that browsing activity to select personalized ads, subject to applicable consent requirements and user settings.

When advertising services operate on the website, third parties may place and read cookies in your browser or use web beacons, IP addresses, device information, and other identifiers. These technologies may support ad delivery, performance reporting, frequency limits, fraud detection, and personalization where permitted.

Non-personalized ads can also use cookies or similar technologies for delivery, frequency limits, and measurement. Choosing non-personalized advertising does not necessarily prevent all advertising-related data processing.

Other advertising providers may participate through Google’s advertising services. Information about eligible providers and their privacy policies is available in Google’s ad technology partner information. The providers involved depend on the advertising setup and applicable consent choices; the general Google list does not mean every listed provider receives information from every visit.

To understand Google’s processing, read how Google uses information from partner websites and apps and Google’s information about advertising technologies.

You can manage Google ad personalization through Google Ads Settings. Participating third-party advertising providers may also offer opt-out choices through the Digital Advertising Alliance. These choices apply within the scope explained by each provider and do not necessarily remove all ads.

6. Consent and your privacy choices

The use of non-essential cookies and similar storage is subject to consent where applicable law requires it. Personalized advertising is also subject to the relevant consent requirements, including those applicable to visitors in the European Economic Area, the United Kingdom, and Switzerland.

If a consent message is presented during your visit, use its controls to review the purposes and providers covered by that message and make your choices. To revisit a choice, use the privacy settings or withdrawal controls provided by that consent tool. If you cannot find the relevant control, contact admin@hard-math.com.

You can also block or delete cookies and clear website storage through your browser settings. Blocking necessary storage may affect website functions or prevent privacy preferences from being remembered. Changes made in one browser or device may not apply to another.

Google Ads Settings controls Google ad personalization, while the Analytics opt-out add-on concerns Google Analytics. Neither is a general control for every technology used by this website.

Where processing is based on consent, you may withdraw that consent. Withdrawal does not change the lawfulness of processing carried out before withdrawal and does not prevent processing permitted on another applicable legal basis.

7. Sharing information

Information may be received or processed by the following categories of recipients:

hosting, network, content delivery, and technical providers that make the website available;
security services used to protect the website and investigate misuse;
Google for analytics and advertising, and advertising providers involved in serving or measuring ads;
email providers used to receive and respond to messages;
public authorities or other recipients where disclosure is required by law or necessary to establish, exercise, or defend legal claims.

Providers receive information relevant to their services. Some process it on our behalf, while others, including providers of certain advertising services, also process information for purposes explained in their own privacy documentation.

8. International processing

Our service providers may process information in countries other than the country where you live. Data protection rules can differ between countries.

Where applicable law requires safeguards for international transfers, the relevant processing is subject to recognized transfer arrangements, such as approved contractual terms or other legally available safeguards. Information about Google’s arrangements is available in Google’s data transfer framework information. You may contact us with questions about transfers associated with your use of Hard Math.

9. Data retention

Retention depends on the information and the purpose for which it is processed:

Technical and security logs: retained for the period needed to investigate errors, manage reliability, prevent abuse, and address security incidents or related legal requirements;
Email correspondence: retained as needed to respond to an inquiry, resolve the issue raised, and keep relevant correspondence where necessary;
Analytics information: subject to the retention settings applicable to the analytics service; retention of event-level information can differ from retention of aggregated reports;
Cookies and browser storage: retained until expiry, deletion, or another period determined by the technology and your browser settings;
Advertising information: subject to the applicable provider’s retention rules and service configuration.

In determining retention, we consider the purpose, sensitivity, security needs, unresolved inquiries, and applicable legal obligations. Information that is no longer needed is deleted or anonymized as appropriate. Anonymized statistics may be retained when they no longer identify an individual.

10. Your data protection rights

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

obtain information about processing and access personal data concerning you;
request correction of inaccurate or incomplete personal data;
request deletion or restriction of processing in applicable circumstances;
object to certain processing, including processing based on legitimate interests;
receive certain data in a portable format where the right to portability applies;
withdraw consent where processing relies on it;
opt out of certain advertising-related uses, including targeted advertising or a sale or sharing of data as defined by applicable law, where those rights apply;
lodge a complaint with the relevant data protection or privacy authority.

To make a request, email admin@hard-math.com and describe the request and your interaction with the website. We may need reasonable information to locate the relevant data and verify that the request concerns you. Because the website does not require an account, some browser-related information may not be identifiable from an email address alone.

Rights are subject to the conditions and exceptions in applicable law. We will assess requests and respond within the period required by that law. For information processed independently by a third-party provider, its own privacy tools or request procedures may also be relevant.

11. Information security

We use reasonable technical and organizational measures to protect information, including HTTPS connections and restrictions on administrative access. Measures are chosen with regard to the information and the risks involved.

No website, internet transmission, or storage system can be guaranteed completely secure. If you believe information connected with Hard Math has been exposed or misused, please contact us.

12. Children’s privacy

Hard Math provides school mathematics, SAT and AP preparation, and related educational materials. Access to the main practice materials does not require a child’s name, email address, date of birth, or school details. We do not knowingly request personal contact information from children under 13.

Technical information can still be processed by website infrastructure, analytics, and advertising services as described in this policy. The absence of registration does not mean that no data is processed during a visit.

If you are a parent or guardian and believe that a child has provided personal information that should not have been collected or retained, email admin@hard-math.com. We will review the circumstances and take appropriate action, including deletion where required by applicable law.

13. External resources and links

Pages may load resources from third-party content delivery networks, including jsDelivr and cdnjs, to provide stylesheets, scripts, and mathematical rendering. When your browser requests an external resource, the provider receives information needed to deliver it, such as an IP address and browser request details. Referrer information may also be sent depending on browser and website settings.

Links to other websites take you to services operated by their respective providers. Review the relevant provider’s privacy information before using its services or submitting information there. This policy describes Hard Math’s practices and does not replace another provider’s privacy policy.

14. Changes to this policy

We may update this policy when our website, service providers, data practices, or applicable requirements change. The revised policy will be published on this page with an updated date. Where a change requires additional notice or renewed consent, the applicable requirements will govern that change.