You can configure SSL certificates for VMware Skyline Health Diagnostics for vSphere.

VMware Skyline Health Diagnostics for vSphere uses SSL certificates to encrypt communications between the server and the client browser to securely access and process the data. By default, the server uses self-signed certificates generated during the installation. Your environments might require use of trusted certificates. You can get a custom certificate as per your organization guideline generated/signed and update VMware Skyline Health Diagnostics for vSphere to use those. Ensure custom certificate meets Custom Certificate Requirements mentioned below.