The short version
There are no accounts, no newsletter and no advertising network. The site is a set of static pages. It counts its visits with two tools, and one of them, Google Analytics, uses cookies; you can turn it off below. What follows is everything the site records, and why.
Analytics
Visits are counted by two tools. We use the counts to see which engines people look up and which pages they click through from, so that the site can be improved, and for nothing else.
Vercel Web Analytics records the page, the referrer, the country and city, the operating system, the browser and the device type, and a hash made from the request that Vercel discards after 24 hours. It sets no cookie and does not identify you. Clicks on buying links are counted the same way: which product, and which page the link was on.
Google Analytics records the pages you view and how you came to the site, your approximate location down to the city, and your browser and device. As Google supplies it, it also records how far down a page you scroll, the links you follow to other sites, when the corrections form is started or sent (not what is typed into it), and what you search for in the shop, because the shop keeps its search and filters in the page address. To tell one visit from the next it sets two cookies, _ga and _ga_KC4LC6B7J9, each holding a random identifier and lasting up to two years. Google says it does not log or store the IP addresses of visitors in the UK, the EU or Switzerland. Its advertising features are switched off here. Google holds the data for us, and its own page sets out how it handles information from sites that use its services.
You can turn Google Analytics off in this browser. The site works the same without it.
Turning it off removes its cookies and stops the site loading it. The choice is kept in this browser's own storage, so it covers this browser only, and clearing your site data resets it.
The territory cookie
The buying links on a record depend on where you are. On your first visit the site asks its own server which country the request came from and stores the result in a cookie called ep_territory. It holds a two-letter territory code such as UK or US, nothing else, and lasts a year. Changing the territory with the switcher on any record page rewrites it. The country itself is not stored anywhere.
Buying links
Some buying links are affiliate links. Amazon links carry our Associates tracking tag: as an Amazon Associate we earn from qualifying purchases. The product images on the shop page load directly from Amazon's servers rather than ours, so Amazon sees your IP address as soon as the page opens, whether or not you click anything. Once you click through, the retailer's own privacy policy applies, and the retailer may set cookies in your browser to attribute a purchase to this site. We see totals, never who bought what. An affiliate link never changes which product we name as the closest match; the measurement does that.
Corrections
The corrections form asks for the record, what is wrong and what is right, and optionally your name and an email address. Before it is sent, Cloudflare Turnstile checks that you are not a script; Cloudflare processes browser signals for that and its privacy policy covers what it holds. The correction is then filed as an issue in this site's repository on GitHub, where it stays as the record of the change. If we apply the correction, the record's history and the changelog cite the issue. Your email address is used only to ask you about the correction and is never published. If you would rather not be named, leave the name blank.
Hosting
The site is served by Vercel, whose edge servers keep standard request logs for a short period for security and debugging. Those logs include your IP address. We do not use them to identify visitors.
Your rights
Under UK data protection law you can ask what we hold about you, ask for it to be corrected or deleted, and complain to the Information Commissioner's Office. In practice the only personal data we may hold is a name and email address you gave us with a correction. Ask through the corrections form and we will deal with it.