Privacy policy

Last updated: 17 October 2026

What we collect

• Contact form: the name, email address and message you send. Used only to reply, and kept no longer than needed.
• Calculators: nothing. All calculations run in your browser; inputs aren't sent to us.
• Server logs: our host (Netlify) processes standard request data such as IP address and browser type for security and delivery.

Analytics and advertising

We may add Google Analytics 4 and display advertising (such as Google AdSense). These use cookies to measure visits and show ads. Where required (UK/EEA visitors), we'll ask for consent before setting non-essential cookies. This policy will be updated before any such service goes live.

Affiliate links

Partner sites may set cookies when you follow a paid link to record a referral.

Your rights

You can ask us to access or delete personal data you sent us, via the contact form. UK and EEA residents have rights under the UK GDPR / GDPR; California residents under the CCPA/CPRA.