Outage
Update June 9, 2026
The issue has been resolved. You can log in again at https://signature.uu.nl.
If you have not yet registered to use the service, you will unfortunately still be unable to do so. The provider is working on a solution.
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The ValidSign digital signature software is currently down due to an update.
The usual login method is not working at the moment. We are working with the supplier to find a solution.