Generally, SSL Certificate Authorities and providers such as Secitgo, DigiCert, Thawte, TheSSLStore, Namecheap, CheapSSLSecurity, RapidSSLOnline, offers three different validation types of SSL/TLS Certificates namely, Domain Validated (DV), Organization Validated (OV) and Extended Validated (EV). Based on your requirement, you can choose any of the ones which suit the best, like: Domain Validated SSL certificate is best for personal blogs or websites Organization Validated SSL is good for the organization’s website which has to deal with critical data Extended Validated SSL certificates are good to go for any shopping portal or any website which does financial transactions online such as Banking website. Though, from whom you purchase does make a difference. For example, SSL Certificates purchased from Certificate Authority will be a bit high in price whereas their resellers offer the same SSL/TLS Certificate at cheaper rates due to the discount they get from the Certificate Authority for purchasing in bulk.