Privacy Policy

What we collect

• Usage data. We collect anonymised data about how visitors use the site — pages viewed, time on page, browser type, and general location (country/region level). This data contains no personally identifiable information.
• Contact information. If you contact us by email, we store your email address and the content of your message in order to respond. We do not add you to any mailing list without explicit consent.
• Cookies. We use functional cookies to remember your preferences (such as card display settings), and our analytics provider sets cookies to measure traffic. This site does not currently show ads or use advertising cookies.

How we use information

• To improve the site. Anonymised usage data helps us understand which content is useful and where the site can be improved.
• To respond to enquiries. Contact information is used only to respond to your message.
• We do not sell data. We do not sell, rent, or share any personal information with third parties for commercial purposes.

Third-party services

We use a small number of third-party services to operate the site, including analytics (to understand traffic patterns) and infrastructure providers. These services process anonymised data only and are bound by their own privacy policies. We do not use data brokers. This site does not currently use an advertising network. If we show ads in the future, they will be served by Google AdSense, and we will update this policy to describe AdSense’s cookies and your opt-out choices before any ads appear.

Your rights

You have the right to request access to any personal data we hold about you, to request its deletion, and to opt out of any data collection. To exercise these rights, contact us at contact@bythemath.com. We will respond within 30 days.

Last updated: October 2026