Privacy policy

Short version: we don't collect your files or ask for personal information.

Files and numbers you enter

All calculations and cover checks run in your browser. Images you drop into the cover checker are read on your device and are never uploaded to our servers. The values you type are kept in the page address so you can share or bookmark a result. We don't store them.

Analytics

We use Cloudflare Web Analytics to count page views. It doesn't use cookies or track you across other websites. It records anonymous information such as the page visited, referrer, country and browser type.

Hosting

The site is hosted on Cloudflare, which processes standard request information (such as IP address) to deliver pages and protect against abuse.

Contact

Questions about privacy? Email [email protected].

Last updated September 2026.