One of the most popular SSL certificates, by far, is the Comodo Positive SSL certificate. This certificate is valid for domain only validation. It offers basic security at an extremely reasonable rate.
128/256 bit encryption
Domain validated certificate
2048 bit Industry Standard SSL Certificate
Trusted by over 99.3% of current Internet users.
Positive SSL certificate is the solution for new websites or environments where trust has been established and entity verification (for identity assurance) is not needed.
domain.com vs. www.domain.com:
With the Comodo PositiveSSL certificate, when the SSL certificate is bought for example.com, it secures both example.com & www.example.com.
Where to use PositiveSSL:
The PositiveSSL is best used on websites that offer low volume e-commerce transactions, and may also be ideal for securing a private Intranet/Extranet that is in need of security features.
COMODO PositiveSSL validition method
With the PositiveSSL all you need is a special email address setup on the domain getting the SSL for example email@example.com. When you order the SSL all the validation emails will go to this address.
Additional product information
Customer ratings for Comodo PositiveSSL Certificate (2 years)