Privacy Policy

1. Information we collect

We collect the minimum amount of information necessary to keep the site running smoothly and to understand how visitors use the challenges.

• Usage and analytics data. We use two analytics services to understand how the site performs:
  • Google Analytics 4. IP anonymisation is enabled. Google sets first-party cookies to recognise returning visitors and reports on aggregated traffic patterns, which helps us improve the experience.
  • Vercel Web Analytics. This privacy-focused tool collects anonymised page view metrics without writing cookies. It helps us monitor uptime, performance, and high-level engagement trends.
• Server logs. Our hosting provider automatically records IP addresses and basic technical details when you load a page. This information is used for diagnostics and security monitoring and is deleted on a rolling basis.
• Voluntary correspondence. If you contact us by email or social channels, we retain the information you share so we can respond and keep a record of the conversation.

2. How we use information

We process personal data for the following purposes:

• to deliver the daily spreadsheet challenges and maintain site reliability;
• to monitor anonymous usage trends so we can improve the experience;
• to diagnose performance or security issues; and
• to respond to questions, requests, or feedback you send us.

3. Cookies and similar technologies

We use first-party cookies and browser storage sparingly. Analytics cookies are only set after you grant consent in regions where this is required. For full details, please review our Cookie Policy.

4. Legal bases for processing

We process personal data only when we have a lawful basis to do so, including to pursue our legitimate interest in operating the website, to comply with legal obligations, or with your consent when required (for example, for analytics cookies).

5. Data sharing and processors

We do not sell personal information. We share data with trusted vendors who help us operate the site, each under a contract that requires appropriate safeguards. These vendors currently include:

• Vercel, Inc. (United States) – website hosting, server logs, and Vercel Web Analytics.
• Google LLC (United States) – analytics reporting via Google Analytics.
• Email service providers – for handling inbound support messages.

6. International data transfers

Our service providers may store and process information in countries other than where you live. We rely on safeguards such as Standard Contractual Clauses or equivalent transfer mechanisms to protect personal data when it leaves your jurisdiction.

7. Data retention

We retain personal information only for as long as necessary to fulfil the purposes outlined in this policy. Server logs are typically kept for less than 30 days. Analytics data is aggregated and does not identify individual visitors.

8. Your rights

Depending on your location, you may have rights to access, correct, delete, or restrict the use of your personal data, as well as the right to object or request portability. You also have the right to withdraw consent for analytics cookies at any time.

To exercise these rights, contact us using the details below. We will respond to all valid requests within the timeframe required by applicable law.

9. Children's privacy

The Daily Excel is intended for adults and professionals. We do not knowingly collect personal information from children under 16. If you believe a child has provided us with personal information, please contact us so we can delete it.

10. Contact us

If you have questions or requests about this Privacy Policy, email us at support@jashby.com.

11. Updates to this policy

We may revise this Privacy Policy from time to time. We will update the “Last updated” date above and, where appropriate, notify you by posting a notice on the site. Continued use of the website after changes take effect constitutes acceptance of the revised policy.