Site information

Privacy

This edition has no account system, embedded third-party media or contact form. It offers optional Google Analytics 4 to understand use of the publication. The Google tag stays blocked until you accept analytics.

Optional analytics

If you accept analytics, Google Analytics 4 receives page and device information and uses cookies to distinguish visits. We do not send names, email addresses or worksheet answers. Our tag removes query strings and fragments from page URLs and does not send a referring URL. Advertising storage, advertising user data and advertising personalisation are denied.

Accepting analytics is optional. Rejecting it leaves Google Analytics blocked. Your choice is stored in this browser for up to 180 days; private browsing and storage settings affect whether it is retained. Open Analytics choices to change it. Withdrawing consent clears this site's analytics cookies and reloads the page with the tag blocked. Browser privacy signals GPC and DNT block the tag.

Analytics reports cover consenting visits and are not a count of every reader. See Google's privacy policy and Google's explanation of consent mode.

Worksheet interactions

Worksheet ticks exist only in the current page. They are not sent to us or retained in browser storage. Printing uses your browser’s print facility. Do not enter personal or confidential information into printed notes unless your own handling process permits it.

Server requests

The hosting server can process request information such as IP address, requested URL, time, browser information and response status to deliver pages and investigate operational problems. Access is restricted to authorised administration. Server logs are rotated daily when in use. Up to 14 rotated logs are retained in addition to the current log.

External resources

Following an external reference opens another organisation’s website, which has its own privacy practices. We do not control that service.

Edition dated 4 November 2026.

Editorial correspondence

When you email editorial@crispproject.eu, your address, message and attachments are handled to answer the enquiry and keep related publishing records. An enquiry does not subscribe you to a mailing list. Please do not send passwords, personal records or confidential supplier evidence.

Use the same address for questions about information you have sent to the editorial desk.