SSL certificate is used for two purposes.
- One is securing online transactions and private information which is transmits between a web browser and a web server.
- Second is Trust, SSL is used for increase customer confidence. SSL proves secure session of your website, it means your customer trust on your website.
Each certificate has own validation process and following this process certificate authority validates your business reliability and send certificate for your website.
A basic cheap ssl certificate only validates your domain authority and authenticated using the approver email verification system. Approver can easily get this certificate in just minutes with generic email address.
OV and EV SSL certificates plugged with customer’s trust and through it’s strictly authentication process it gives highest level of trust. EV SSL validates manifold components of identifying your domain and business information. It follows manual verification process and during this process system fails to verify or system defendants your business for potential false action then your order may be lined up for manual review.
Main difference in trust factor and brand reputation, while your customer see the green address bar in your browser then they feel more secure and encourage to make transaction. Otherwise, some differences between other features like encryption, browser compatibility, key length, mobile supports, etc.
Otherwise certificates warranty explains differences. Certificate authorities provide extended warranty ($1K to $1.75M) against mis-issuance of an SSL certificates which explains the worth of your investment for website security.
While focus on price of certificate, it doesn't matter where to buy your certificate – certificate authority or authorized reseller. Authorized reseller offers same SSL products, same security features, better support at reasonably priced.