Summary
The calculators run entirely in your browser. The site sets no cookies and loads no third-party scripts, fonts or analytics. It asks for your position only when you press Use my location; the coordinates are used in your browser for the calculation and are never sent to this server. The place search works from a list stored on this site, so what you type is not sent anywhere either. The only personal data the site can receive is what you type into the contact form, plus the technical server logs that every web server keeps.
Server logs
The web server records each request with the IP address, time, requested URL, response code, referring page and browser identifier. These logs are used to keep the site running and to detect abuse. They are kept for 10 days and then deleted automatically.
Contact form
When you send a message we store your name, e-mail address, subject, message text, the time, and a keyed hash of your IP address (which cannot be turned back into the address) used to limit the number of messages per hour. Messages are stored on this server outside the public website folder for 180 days and then deleted. They are used only to answer you and to correct the site. Legal basis: our legitimate interest in answering enquiries and keeping the site accurate, and your consent given by ticking the box on the form.
Storage in your browser
If you make a choice in the cookie banner, that choice is saved in your browser’s local storage under the key cookie-consent for twelve months. Nothing else is stored, and nothing is sent to us.
Your rights
Under the GDPR and similar laws you can ask what personal data we hold about you, ask for it to be corrected or deleted, object to its processing, or complain to your data-protection authority. Use the contact form; a message asking for deletion is itself deleted once handled.
Publisher details (the name and contact address of the person or organisation responsible for this site) will be added here as soon as they have been supplied. Until then, use the contact form.
Changes
This policy is reviewed when the site changes in a way that affects data. The review date is shown at the top; the page’s update date is shown at the bottom.