Buy the cheapest one
 

 
 
 

 
 
 
 
 
Paid by paypal, then
 
 

 
 
 
 
 
 
Step 1. 
on comodo, need  Input CSR (Certificate Signing Request)

 
1.1 cpanel > SSL / TLS > click  SSL certificate signing request

 
1.2 cpanel > SSL / TLS > click  SSL certificate signing request

 
 
 
 
 
1.3   fill out:   Generate a New Certificate Signing Request (CSR)

 
 
 
 
1.4 copy CSR
            -----BEGIN CERTIFICATE REQUEST-----
                      -----END CERTIFICATE REQUEST-----

 
 
 
 
 
1.4 copy private key
                       -----BEGIN RSA PRIVATE KEY-----
              -----END RSA PRIVATE KEY-----
 

 
 
1.5 paste on comodo page, then continue

 
 
 
 
 
 
Step 2. domain verification
 
2.1 

 

 
 
 
 
2.2

 
 
2.3
