Points to consider before choosing the SSL certificate
i) Strength of the encryption offered by the certificates
ii) Browser comptability or recognition of the certificates. A well known brand is recognized by most of the browsers in the market
iii) If the certificate offers backward comptability across browsers offering
iv) Whether the Certification Authority (CA) is a Trusted Root or if they use a Chained Root Certificates.
v) Which web server will be used for SSL installation. Chained root certificates may be little complicated on some web servers.
vi) Nature of the application that will be served over the SSL – depending on the volume of the transactions and the value of each transaction
vii) Warranty offered by the certificate (if that matters which most certainly is when it comes to ECommerce products)