Privacy Policy

Server and technical data

Hosting systems may process IP addresses, browser and device information, requested pages, timestamps, referring pages and security events. This information may be used for operation, diagnostics, security and aggregate measurement.

Advertising and analytics

The site may use Google advertising services and analytics where enabled. Advertising partners may use cookies, web beacons, IP addresses and similar technologies to measure, limit and personalize advertising where permitted. Google may use information from this site and other sites according to its own policies.

Regional consent

For visitors in the European Economic Area, United Kingdom and Switzerland, a Google-certified consent management platform may request choices before eligible advertising or analytics storage is used. Available choices depend on location, browser and the services active at the time.

Tool entries

The worksheets on this site run in the browser. The site does not create accounts, receive the entered notes or provide backups. Avoid entering sensitive personal information.

Contact

Privacy questions may be submitted through the contact page.