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GouvCheck – Check the authenticity of an official document
What is the purpose of GouvCheck?
GouvCheck enables you to check the authenticity of an official document issued in Luxembourg, free of charge and in real time, using a QR code embedded in the document.
How do I use the GouvCheck app?
Anyone can check the authenticity of an official document with a 
-QR code.
Verifying an official document couldn't be easier:
- Download the app with your smartphone or tablet from the Google Play Store or the Apple App Store.
- Open the app on your smartphone or tablet.
- Scan the QR code on the document that you want to authenticate.
- The application tells you whether the QR code is valid and you can check whether the data on the document match those displayed by the application.
It is therefore impossible to commit fraud by using a false QR code on the document.
Please note: GouvCheck enables you to authenticate a document, but cannot replace the document itself.
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Logo de l’appliction mobile
© Centre des technologies de l'information de l'État (CTIE)
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Écrans de l'application
© Centre des technologies de l'information de l'État (CTIE)
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Exemple de certificat de résidence
© Centre des technologies de l'information de l'État (CTIE)
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GouvCheck sur Google Play Store et Apple App Store
© Centre des technologies de l'information de l'État (CTIE)
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GouvCheck – Vérifiez l'authenticité d'un document officiel
© Centre des technologies de l'information de l'État (CTIE)
Who is the app for?
The mobile app is designed for anyone who wants to check the authenticity of an official document issued by an administrative body. It is free of charge.
Which documents does it work with?
Documents whose authenticity can be verified via the application carry a QR code identified by the following logo 
:
- UAS operator registration certificate
- Certificate of declaration/termination of a partnership
- Provisional tax certificate
- Automotive liability coverage notification
- Building permit
- Business permit
- Authorisation to use red licence plates
- Ministerial authorisation for abnormal road transport
- Connectivity voucher
- Transmission receipt for a procedure with authentication on MyGuichet.lu
- Certificate of registration of a reference address
- Affiliation certificate
- Certificate of authenticity for a Luxembourg driving licence
- Certificate of voter registration
- Certificate of attendance for the Université Populaire de Luxembourg
- Residence certificate
- Extended residence certificate
- Income certificate
- Certificate of enrolment
- Certificate of life
- Welcome and Integration Contract
- Digital COVID certificate (following vaccination)
- Certificate – Discover the Grand Duchy of Luxembourg
- Certificate - Intercultural living together programme
- Certificate providing information on the wage bill
- Certificate stating the number of employees
- Certificate required for the sale, purchase and use of plant protection products
- Request for a chassis number to be re-stamped
- Criminal record certificate
- Individual vehicle approval form
- Annual hunting permit
- Fishing licence
- Road-building permit
- Proof of payment - passport
- Proof of payment - identity card
- Conformity sticker
What are the benefits of GouvCheck?
| Authenticity | Integrity | Real-time verification |
|---|---|---|
| The document was issued by an official body. It holds legal value. | The information shown on the document has not been altered. | The document can be verified at any time without the need for an internet connection. |
What is a QR code?
A QR code is used to represent encoded data so they can be read by electronic devices (such as smartphones or tablets) and processed by an application.
To process the GouvCheck QR code, which is easily recognisable by the logo, you need:
- a smartphone or tablet with a camera; and
- the GouvCheck mobile app, which can be downloaded from the Google Play Store or the Apple App Store.