Privacy Policy

Last updated: October 2026

What this site is

Document Number Validator is a documentation and demo site for an open-source .NET library. It is built to work without tracking.

Cookies and analytics

This site does not use advertising or analytics cookies and does not include third-party trackers. The only browser storage used is your colour-theme preference (localStorage), which never leaves your device.

Demo inputs

Values you enter in the on-page demo are processed in memory on the server for the current request so that validation can run. They are not persisted, logged to the application data store or shared with third parties. Do not enter real personal or financial data into the demo.

Server logs

As with any hosted website, the hosting provider may keep standard infrastructure logs (such as IP address, requested URL and timestamp) for security and operations purposes.

Open source

The website source and the validator libraries are public on GitHub. If you have questions or want to request a change, open an issue.