Secure Sockets Layer or SSL is basically an encryption technology that builds a safe and secure session between a website visitor and a website. An SSL Certificate is a digital computer file that is primarily used to encrypt or decrypt information that is send to and from the website.
SSL certificates are considered very crucial for businesses that indulge in taking online orders and payments or those that process crucial data, such as birth dates, bank account numbers, and credit card numbers among others.
These certificates help the website visitors to know that site belongs to who it says it belongs to. An SSL certificate also provides information about the holder of the certificate, the domain name that the certificate was issued to, and the name of the Certificate Authority who issued the certificate.