How to choose ssl certificate

Site ssl certificates can be deployed to prevent the disclosure of information on the website, to avoid being someone else's malicious tampering, also prevents phishing sites, in order to protect information security Web site, is conducive to optimizing and ranking websites.
ssl certificate has different brands and types of users according to their own particular situation, installed corresponding certificate deployment.
ssl certificates generally have the following:
DV SSL certificate is the most common type ssl certificate
OV SSL certificate type business type ssl certificates, higher level than DV
SSL Certificate EV type (address bar green, and company name) ssl certificate highest level
select the type of personal recommendations OV SSL certificate, because it's cost-effective. Although EV highest level of security, but the price is high, DV, the price is very cheap, but security is not so good, in contrast, OV type SSl certificate is the best option.