In case you need to use an SSL Certificate on your website, in order to protect the payment and login data which users send, you'll need a Certificate Signing Request, also known as CSR. The Request contains all the info related to the entity that will use the SSL in an encoded form, such as the exact website address for the site, the Business/Organization name, physical and e-mail address. It has to be submitted to a service provider, or Certificate Authority, which reviews the submitted information and based on it, gives the SSL certificate. The actual SSL installation requires four different bits of code - the certificate, the CSR, a special private key which is generated together with the CSR and the SSL vendor private key. A website which has an SSL installed can be accessed with https:// instead of the usual http:// and the information submitted for the CSR can be viewed in standard text format via a web browser.