Analytics and cookies
This site uses Google Analytics 4 to count visits, completed form submissions, the words typed into the register's filter boxes and the chemicals looked up in the chemical checker. Google never receives what you type into a form. Google signals and advertising personalization are turned off. Visitors whose devices use a European time zone load nothing from Google until they choose Accept. Elsewhere, the banner offers Accept and Decline, and a Global Privacy Control signal is treated as Decline. Declining deletes Google Analytics cookies and keeps the script from loading on later pages. Your choice is stored in your browser for 12 months, and the Privacy choices link in the footer reopens the banner.
Forms
The contact, subscription and data request forms send what you type to our host, Netlify, which stores the submissions for us. We use contact messages to reply and to correct the register, subscription emails to send register updates, and data requests to provide the dataset and, if you ask, updates. We do not sell or share this information. To have a submission deleted, use the contact form.
Chemical lookups
The chemical checker sends names that are not in its built-in table from your browser to PubChem, the chemical database of the US National Library of Medicine, which can see your IP address. The page address includes the name you looked up, and analytics record page addresses if you allow them.
Headline feeds
Some pages show recent news headlines. To load them, your browser requests a Google News feed through a public relay service (allorigins.win, corsproxy.io or codetabs.com), which can see your IP address. Headlines are cached in your browser for six hours. Blocking these requests does not affect the register.
Browser storage
The site stores the headline cache and your consent choice in your browser's local storage. Nothing there identifies you.
Hosting
Netlify serves the site and keeps standard server logs, including IP addresses, for security and operations.
Contact
Questions about this policy go through the contact form. The site is operated by Agency Echelon LLC.