About SSL certification
If you store sensitive data, such as customer profiles, on your site, you can secure your site by obtaining a Secure Sockets Layer (SSL) certificate.
Note: SSL certificates are available to IP-based domains only; you cannot obtain an SSL certificate for name-based domain.
SSL is a protocol that transmits private documents through the Internet. It creates a secure connection between a client and a server over which data can be sent securely. SSL works by using a private key to encrypt data transferred over the SSL connection.
SSL certificates are available from a Certificate Authority (CA), such as VeriSign®.
To secure your domain:
Generate an SSL certificate request
Request a certificate from a Certificate Authority (CA)
Load the SSL certificate onto your domain
Restart the Web server