Domain Validation (DV) certificates are easiest of all the certificates to obtain. There’s no manual identity check, only an automated verification that confirms the applicant owns the domain behind the website. If you have a personal website or blog, a DV SSL certificate is suitable for you. Organization Validation (OV) certificates take security up a level and require human verification of the organization’s identity. The same is true for Extended Validation (EV) certificates, which verify not only domain ownership, but business identity, legal status and address. The vetting process for the EV cert is more in-depth than any of the other certificates, thus EV SSL certificates instill a greater degree of confidence to customers who visit your site.