SSL for subdomains on different servers / organizations

by systematical   Last Updated April 16, 2015 03:01 AM - source

I have a scenario where the company I work for is hosting applications for companies on subdomains that point to our servers. Since our application processes credit cards we need to use HTTPS. For instance we may have and which are two separate organizations, they will create an A record pointing to our server and setup a client subdomain (i.e. and

Given this scenario is it possible to purchase a single certificate to use on all of our client application subdomains or will the client need to purchase their own certificate and if so what kind?

Tags : https

Answers 1

You can purhase certificate which has multiple Subject Alternate Names listed, that is, the domain can be valid for and

However, every time you get a new client, you have to purchase a new certificate that has this additional SAN in it.

Tero Kilkanen
Tero Kilkanen
April 16, 2015 00:32 AM

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