Set up HTTPS (SSL)
Why am I getting a Site Not Secure Error?
Currently you are using a standard HTTP connection. If you send users to your domain using a secure HTTPS address (by access the domain with the prefix https:// in your browser's URL bar) you will get that error. You can fix this by removing the "s" in the URL prefix.
Create a support ticket set up HTTPS
There is a $30 one-time fee for the security certificate for PLUS Accounts (PRIME Accounts include a free certificate registration). If you'd like to proceed, the next step is to update your DNS settings to verify ownership of your domain. The support team will walk you through this process, step by step.