In case you offer services and goods on your site and you would like the payment details that users upload to be secure, you should use an SSL certificate. Secure Sockets Layer is a protocol that encodes the information exchanged between a user and a web server, but to get an SSL, you need a Certificate Signing Request (CSR). This is Base64 encoded info that the SSL service provider will use to create the certificate. The CSR contains your web address, Business name and Unit, postal address and email of the business which will use the certificate. The Certificate Authority reviews and authorizes the CSR before it issues an SSL certificate that is signed electronically using its private key as an authority. To set up an SSL, you need an overall of four batches of code - the CSR, a Private Key that is made once you generate your Request, the actual certificate plus a special Certificate Authority code, which is unique for each and every vendor.