What are some alternatives?
When comparing ClickSSL and COMODO SSL, you can also consider the following products
Let's Encrypt - Let’s Encrypt is a free, automated, and open certificate authority brought to you by the Internet Security Research Group (ISRG).
SSL2BUY - SSL2BUY is the foremost SSL certificate provider of online security solutions for businesses.
Digicert - Encryption & Authentication
VeriSign - VeriSign Authentication Services provides solutions that allow companies & consumers to engage...
SafeCyberSSL - SafeCyberSSL is a platinum partner of leading Certificate Authorities.
CAcert - CAcert.org is a community-driven Certificate Authority that issues certificates to the public at...