The difference may be its Warranty Level and browser trust. A Domain validated certificate is available at cheap price, but EV SSL certificate is available at h

The difference may be its Warranty Level and browser trust. A Domain validated certificate is available at cheap price, but EV SSL certificate is available at higher than DV. But, EV offers green address bar, padlock and trust site seal so it expensive than a DV SSL. But, if you want secure your blog only than Domain validated certificate like positive ssl, essential ssl or comodo ssl are the best option that is available cheap price at https://comodosslstore.com https://comodosslstore.com