Privacy and cookies
Short version: Google Analytics 4 runs only if you accept. There are no forms, accounts or advertising cookies. Our host processes IP addresses to deliver pages (see Hosting below). Cookie names and lifetimes are on the cookie notice.
What we collect
We don't run forms, accounts, email sign-up or comments, and we don't use advertising cookies. If you accept, Google Analytics 4 collects usage information, such as which pages are opened, for us. If you reject, that information is not sent. Our host processes IP addresses to deliver pages; see Hosting below.
Cookies
Google Analytics 4 sets cookies only after you choose Accept analytics. The cookies are _ga and _ga_DE36YTF0YS. The second name is _ga_ plus this site's measurement id (G-DE36YTF0YS), without the G- prefix. They can last for up to 2 years.
Your choice is stored in this browser's local storage under the name ferncharge-consent. That storage is strictly necessary so we remember your decision. It is not a cookie, and it is not sent to us or to Google. Nothing is pre-ticked.
The lawful basis is consent. You can withdraw it at any time: choose Cookie settings in the footer, then Reject. Rejecting stops analytics and deletes the _ga and _ga_ cookies in this browser.
More detail is on the cookie notice.
Google Analytics
We use Google Analytics 4 only with consent. Usage data is processed by Google Ireland Limited and Google LLC. Where personal data is transferred internationally, Google uses an adequacy decision or standard contractual clauses (SCCs).
Google Analytics data retention is 14 months. IP addresses are not logged or stored in Google Analytics 4. Google Signals and advertising features are off, including ads storage, ad user data and ad personalisation.
The calculators
Our calculators run entirely in your browser. The numbers you type are not sent to us or anyone else, and they're cleared when you leave or reload the page.
Hosting
This site is hosted by Cloudflare. Like any website, the server that delivers these pages processes your IP address and basic request details in order to send them to you. We don't use that information to identify or track you.
Links to other sites
We link to manufacturers and official sources. Their own privacy policies apply once you leave this site.
Changes
If we add a form, or any analytics other than this consented Google Analytics 4, we'll update this notice first, including who is responsible for your data.