First of all, my first Stack Exchange question! I hope I'm at the right place.
Secondary, I know TLS is the successor of SSL, but since everywhere I go, they just called it SSL, I'm using it for this entry. Unless I'm wrong on that...
I need to decide which SSL certifications to get for three websites under a single parent company, but each websites have it's own identity, and one of them does not want to be known to be under the other (for marketing reason).
Based on my price research, getting multiple single-domain SSL is actually cheaper than getting one multi-domain SSL? Example is this: https://sslmate.com/pricing (I hope I'm allowed to post link). If I get three single-domain, it's $15.95 times 3. If I get multi-domain with three domains, it's $24.95 times 3.
From what I understand, multi-domain SSL allows different domains to be identified as under the same organisation.
If I have no need for this, is there any other advantage of just getting multiple single-domain SSL?
If the above assumption is correct, is the "multi-domain SSL allows different domains to be identified as under the same organisation" limited to EV or OV?
While I assume there is no difference if we are using Windows server and not Linux, I can't find a Google search result that supports this. All I found from Google is that installing SSL is done differently. Does having Windows server affect the decision to get which SSL cert?
(Sorry, the more I type, the more questions pop up in my head...)
Does having SSL affect SMTP/email in any positive way?