When an Internet user visits a secure web site, an SSL certificate provides identification information about the web server and establishes an encrypted connection. This process happens in a fraction of a second.
There are 3 essential elements at work in the process described above: a protocol for communications (SSL), credentials for establishing identity (the SSL certificate), and a third party that vouches for the credentials (the certificate authority).
If you need to secure your web site, it is quick and easy to request an SSL certificate and install it.
At the end of the SSL certificate’s validity period (1-5 years, depending on the certificate type and your selection), you have the option to renew your SSL certificate. You may need to provide additional information for authentication or generate a new CSR.