How do I validate a certificate?

Today, there is no central database over CE marks or notified body certificates. The only way to check a CE mark is to validate the documentation, i.e. the Technical File and Declaration of Conformity.

There is no such thing as a "CE certificate" or a "CE mark certificate", there are only notified body certificates. To validate that the certificate provided in the documentation is correct, you should contact the notified body that issued the certificate.