Privacy Policy

What you type into the calculators

The date of birth you enter, and the name if you add one, are used in your browser to draw the chart. They are not sent to our servers or stored in a database. If you press Copy link, they become part of the web address you copy, so anyone you give that link to can see them.

Analytics

We count visits with a self-hosted copy of Umami, a privacy-focused analytics tool. It sets no cookies. It records the page you viewed, the referring site, your browser and an approximate location. The query string of a web address, which is where your birth date and name sit in a result link, is removed in your browser before anything is sent, so the name and date you type into the calculators are not recorded. We do not use Google Analytics at the moment.

Advertising and cookies

We plan to show ads through Google AdSense once the site is approved. Google and its partners may use cookies to serve and measure ads, including personalised ads. You can manage personalised advertising at Google's ad settings page, and you can block or delete cookies in your browser. Until ads are switched on, no advertising cookies are set.

Your rights under GDPR and CCPA

If you are in the European Economic Area or the United Kingdom you may ask what data we hold about you, ask us to correct or delete it, object to processing or withdraw consent. If you are a California resident you may ask what personal information we collect, ask us to delete it, and tell us not to sell it. We do not sell personal information. Write to [email protected] and we will reply within the time the law allows.

Children's privacy

This site is not directed at children under 13 and we do not knowingly collect personal information from them. The child calculator is meant for parents and guardians; please do not enter a child's details on their behalf without being their parent or guardian.

Changes

If we change this policy we will update the date shown in the footer. Questions go to [email protected].