The basic cause of having to get an SSL certificate is to encrypt the sensitive information while on the net so while it is being sent to other sources, it stays safe from any interventions and only the recipient for which the information is meant to be can view the sensitive data.
It is highly important as the information you send over the internet technology gets passed from one computer to another for getting to the destination server.
You can get an SSL certificate by first setting up the server and updating of the WHOIS record as it also displays the official name and location of the country followed by the generation of the CSR on the server. After that, the submission of the CSR and more information to the Authority issuing the SSL certificate is essential.
Once the authority receives the information, it proceeds to approve the domain and validate the company. Upon validation, the certificate is issued which can be easily installed.