Date Estimator

Privacy Policy

Last updated: May 6, 2026

This Privacy Policy explains how Date Estimator ("we", "our", "us"; the website at dateestimator.com) handles information when you use our calculators and tools. By using the site you agree to this policy.

1. The short version

  • Every calculation runs in your browser. Inputs do not leave your device.
  • We don't ask for accounts, names or emails to use the calculators.
  • We may use privacy-friendly analytics and advertising services that collect anonymous, aggregate data.
  • We never sell your personal data.

2. Information we do not collect

Dates you enter into calculators (last menstrual period, birth date, target dates, etc.) are processed entirely in your browser and are not transmitted to our servers. Entries you save in the Date Memory Vault are stored only in your browser's localStorage on your device.

3. Information that may be collected automatically

Like most websites we may receive standard request data (IP address, browser type, referring URL, timestamp, page viewed). This data is used to keep the site secure and understand which pages are popular. We use privacy-respecting analytics that do not build cross-site profiles.

4. Cookies and similar technologies

Our site itself does not require cookies for functionality. Third-party services we may use (analytics or advertising — see section 5) may set cookies. You can disable cookies in your browser without breaking the calculators. See our Cookies page for details.

5. Advertising

We may display advertisements served by Google AdSense or similar ad networks to keep the site free. Ad networks may use cookies and similar technologies to serve relevant ads and measure their performance. They are required to honour applicable opt-out signals (Global Privacy Control, "Limit Ad Tracking", etc.).

You can manage personalised advertising:

6. Third-party services

We may use the following categories of third-party services:

  • Hosting / CDN — to deliver site files quickly.
  • Analytics — to count visits in aggregate.
  • Advertising — to display ads (if enabled).

Each service has its own privacy policy. We choose providers that publish clear privacy practices and support standard opt-outs.

7. Your rights

Depending on where you live (EU, UK, California and others), you have rights such as access, correction, deletion or objection regarding personal data we hold about you. Because we don't knowingly collect personal data through the calculators, these requests typically apply only to email correspondence. Contact us at info@dateestimator.com and we will respond within 30 days.

8. Children

Date Estimator is intended for a general audience. We do not knowingly collect personal information from children under 13 (or under 16 in the EU/UK). If you believe a child has provided us personal information, contact us and we will delete it.

9. International transfers

Our hosting is provided through a global content delivery network, which means our static files may be served from data centres worldwide. The static nature of the content means no personal data is transferred for processing.

10. Changes to this policy

We may update this policy from time to time. The "last updated" date at the top of this page reflects the most recent version. Material changes will be summarised on the homepage briefly.

11. Contact

Email: info@dateestimator.com