Privacy

Last updated October 27, 2026.

What we collect

No account and no form that sends data to us. The pages load Google Analytics 4 from www.googletagmanager.com, which counts page views so we can see which pages are used.

Google Analytics 4 records the address of each page you open (without the part after #), its title, the page you came from, and the browser, device, approximate location and time of the visit; Google processes this under its own privacy policy. Outside the European Economic Area, the United Kingdom and Switzerland it sets first-party cookies to tell repeat visits apart. Inside them analytics storage is refused by default: it sets no cookie and sends only cookieless pings. Advertising storage is refused for everyone, and the site shows no ads.

The search box runs in your browser: it downloads code lists from this site and searches them on your device. A search is kept in the part of the address after #, which browsers do not send to servers and Google Analytics 4 does not record, so what you type is not sent to us or to Google. A code card address such as /?code=E11.9 is recorded like any page address. Your light or dark theme choice is kept in your browser's local storage.

Hosting

The site is served by Cloudflare, which processes technical data such as IP addresses to deliver pages and protect the service, under its own privacy policy.

Contact

Questions: hello@dxcodebook.com.