Besides the difference in the types of validation, almost all certificates have similar high levels of data encryption.
The fundamental characteristic is the assurance about the business behind the website.
Three types:
Domain Validated (DV)
Verifies applicant is the domain registrant
Minutes to complete
Minimal Fee
Great for Blogs and small websites
Can be purchased from the following companies:
NameCheap Positive SSL
GoDaddy Protect
Network Solutions Xpress
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Organizational Validated (OV)
Verifies domain ownership plus full company address.
Can take a few days
Higher Fee
suitable for small business
Can be purchased from the following companies:
NameCheap InstantSSL
Comodo OV
SSL.com High Assurance
Entrust Advantage
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Extended Validated (EV)
Extensive validation of the domain business making bar green
Can takes weeks for verification
Very expensive
Ideal for sites conducting financial transactions.
Can be purchased from the following companies:
Network Solutions EV
GeoTrust True BusinessID
Thawte EV
Namecheap EV SSL