Single Site - Multiple Sub Domains - Secure - SEO

I have a custom Content Management System that is also the framework for a medical bill pay and appointment info web portal.

Currently I use a wildcard certificate to handle the SSL. So we are Company ABC, we use the domain companyabc.com for all of the 25 plus clinics. www.clinicA.com gets content from http://clinicA.companyabc.com.  It is displayed in the borwser as www.clincA.com until any page that requires https is called for then it gets a  <a target=_top... so that it will show the SSL info correctly.

This has been fine for the last 7 years or so. I have sitemaps listed for each subdomain and google results show the link as the sub domain http://clinicA.companyabc.com 

What I would like to do is correctly have google index the site using their real domain www.clinicA.com 

I can't do a multi-domain SSL Cert because we don;t own the domains, the clinics do. I can't use host headers because all of the clinic sites are served from one website, I can't bind more than one SSL to the same port.

What I need is a way to have google treat the sub-domained sites like they are www.clinicA.com
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bcolladayAsked:
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Steve BinkCommented:
[ ... ] I can't bind more than one SSL to the same port.

But you can.  It's called Server Name Indication, or SNI.  It is supported by the popular browsers and servers, and is relatively transparent from a configuration perspective.  Have a look at some more information about it.

Otherwise, your only option is to get more IPs, and set each site up with its own.  Google is going to consider the SSL CN canonical.  If you want it to register the www.clienta.com, you'll need certificates matching that CN.

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bcolladayAuthor Commented:
Thanks, that is a good solution for us.
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