The contact detail we ask for is your email address, and each submission is recorded together with the page and referring URL it came from, your browser, operating system, device and screen size, language and timezone, any campaign tags in the link you arrived through, the country your request appears to come from, and the exact wording of the consent checkbox you ticked. Your IP address is kept only as a masked copy with the final part removed, alongside a salted one-way hash of it that cannot be turned back into the address. We also collect non-identifiable usage data (such as clicks on cards, time spent on the page, and scroll depth) to trigger contextual popups and improve our content.