Enable certificate revocation list checking for improved security
When you enable certificate revocation list (CRL) checking, Citrix Workspace app checks to see if the server’s certificate is revoked. Forcing Citrix Workspace app to check this helps improves the cryptographic authentication of the server and the overall security of the TLS connection between the user device and a server.
You can enable CRL checking at several levels. For example, you can configure Citrix Workspace app to check only its local certificate list or to check the local and network certificate lists. In addition, you can configure certificate checking to allow users to log on only if all the CRLs are verified.
If you are making this change on your local computer, exit Citrix Workspace app. Make sure all the Citrix Workspace components, including the Connection Center, are closed.
For information about configuring TLS, see Configure and enable TLS