[rbritton]

There's also StartSSL (https://www.startssl.com) for certificates too. You can get basic ones for free or pay a relatively cheap amount to get more a higher tier validation. I've been using them for years successfully, and when combined with SNI, I no longer need to pay for a multi-domain certificate.

[rimantas]

StartSSL free certificates are for non-commercial use only. It is burried in the terms, but that is so.

[rbritton]

I just checked and you're right. Their website is very misleading on the subject: "The StartCom Certification Authority, provides the StartSSL™ Free certificates instantly, without limitations". Correct me if I'm wrong, but "Class 1 certificates are limited to client and server certificates, whereas the later is restricted in its usage for non-commercial purpose only." is the very definition of a limitation.

Thankfully it doesn't affect me currently -- I'm using class 2 certificates -- but I'll be doing more research come renewal time.