Diadem Technology Provides free Let’s Encrypt SSL certificate for all domain or subdomain hosted on diadem server
3. In the Websites and Domain tab click on the Let’s Encrypt button.
4. In this screen enter the Email Address
5. Check on Include an alternative domain name option in the same manner as shown in the bellow image.
6. Then click Install/Renew and the Free SSL will be created on that particular domain.
If you have multiple domains or subdomains you can install Let’s Encrypt free SSL certificate using above mentioned steps for each domains or subdomains.