Yes, absolutely. There are no issues using their SSL certificates on our platform for Load Balancing or the Web Application Firewall. In fact, we already have the Let’s Encrypt Authority Intermediate certificate loaded into our repository and ready for your use.  You can upload certificates manually through our UI, or you can automate/script the entire process using our API. If you need any help, feel free to reach out to our support team. We’re here to help!