How to check if the HTTPS pre-req for WEC is fulfilled?

The pre-reqs document for setting up a WEF source lists Using client certificate authentication over HTTPS as one of the items. How do I check if that requirement is fulfilled before I start?

Hi Eugene,
You can check this by looking in the group policy editor and ensuring it is set to use HTTPS.
As in the screen shot below.
Once ensuring the correct value is in place to use HTTPS over HTTP kerberos the windows default, we just need to ensure the certificates are all in the proper place in Cribl and Windows.
For windows we suggest automatic enrollment as shown here.

The same doc list the steps for applying the certificates to Cribl as well.