Where to enable Let's Encrypt SSL certificate?

The standard (not wildcard) Let's Encrypt SSL certificate is supported, which can be activated for a domain record if your domain is already redirected to VPS. The certificate is renewed automatically. Wildcard SSL certificate is not supported for WebApps servers, but the situation can be solved by creating two domain records, each with its own standard certificate pointing to the same directory. The behavior can then be modified using .htaccess.