Privacy & cookies
MaterialMetrik calculators run locally in your browser. Shared URLs may contain project dimensions that you choose to include. We count calculator uses in aggregate by date and calculator type using Cloudflare D1. If you submit the contact form, your message, selected topic and any name or email you provide are stored in Cloudflare D1 so we can review your feedback. Do not submit sensitive information. Access to submitted messages should be limited to the site administrator, and messages should be deleted when no longer needed. The site does not currently send email notifications. This version does not intentionally set analytics or advertising cookies. Before enabling third-party advertising or analytics, this page and the consent implementation must be updated to describe the actual data processing and applicable choices.
Feedback encryption and retention
New feedback submissions are encrypted before being stored in our database. Providing a name or email address is optional. We intend to retain feedback for up to 30 days; automated deletion is not yet configured. Older submissions may require separate deletion.