Odd behaviour in multiple domain environment

While I suppose it isn't the best thing for SEO, our forums run 4 different domains, the main .net one and .tv, .info and .mobi.

While the .tv and .info ones are identical to the main .net site, we use a plugin to make the .mobi site show a mobile phone optimised skin.

The issue is that while we have Include Domain Name in URLs? set to no, but while the links on the forum index point to the url that the site was accessed from, when you are on a forumdisplay page it links back to the .net site, as do the in page anchors on the forum index.

This creates a few problems, logging people out by taking them to a different domain, security token mismatches when replying from different domains, taking people away from the mobile site to the main one (which is fairly bandwidth heavy in comparison) and a few other issues.

I do find it odd that it is only happening to some parts and not others of the site. Any suggestions?

vBSEO is designed to work on 1 domain and 1 domain only.

I suggest chosing one domain as your main domain, and park the others on it with the htaccess enabled to redirect from not main to main.

For the mobile, I suggest creating an actual site and redirecting to .com?styleid=X to you rmobile theme.

I Agree with you suggest Brian the mobile domain is not needed you can also rewrite the mobile style URL
But Brian I think the park domains can make duplicate content

As Brian said, you park it and make sure you have the .htaccess forcing all traffic to the main URL.

correct. i have about 10 domains parked on my main .com

Originally Posted by Brian Cummiskey

vBSEO is designed to work on 1 domain and 1 domain only.

I suggest chosing one domain as your main domain, and park the others on it with the htaccess enabled to redirect from not main to main.

For the mobile, I suggest creating an actual site and redirecting to .com?styleid=X to you rmobile theme.

Any chance you could give a little more detail on the best way of achieving that? Something I'd like to be able to do in that context would be to redirect to a mobile portal as well, so ideally I'd like to be able to redirect site.mobi/ to a certain page and site.mobi/forums to that style.