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301 Redirect vs Domain Alias
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We have hundreds of domains which are either alternate spelling of our primary domain or close keyword names we didn't want our competitor to get before us.
The primary domain is running on a dedicated Windows server running IIS6 and set to a static IP.
Since it is a static IP and not using host headers any domain pointed to the static IP will immediately show the contents of the site, however the domain will be whatever was typed. Which could be the primary domain or an alias.
Two concerns.
First, is it possible that Google would penalize us for the alias domains or dilute our primary domain "juice"?
Second, we need to properly track traffic from the alias domains. We could make unique content for those performing well and sell or let expire those that are sending no traffic.
It's not my goal to use the alias domains to artificially pump up our primary domain. We have them for spelling errors and direct traffic.
What is the best practice for handling one or both of these issues?
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Update:
I used ISAPI_Rewrite from http://www.helicontech.com/ to handle domain alias redirects and it uses proper 301 redirects to the primary domain.
Also I found an article in the Google Analytics Forum Archive http://groups.google.com/group/analytics-help-basics/browse_thread/thread/380a839ebd9a7f6a which answered my other question on finding the count of referrals to the primary domain from the alias domains. Apparently it's very simple and their is no setup needed. Just go to Visitors -> Network Properties -> Hostnames for your site's profile in GA.
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If the site is to simply keep competitors from obtaining them, I would just register the domain and leave it parked. I would not run domains just for misspelled combinations. You start to have too many domains that you have to get to rank which could dilute your efforts for the real site.
How much traffic do you get for the misspelled version, and where does your main site rank for those misspellings? I might try PPC for those misspelled versions and just park those domains. To get them to rank you will have to build content and links. Lots of work for what may be little return. With PPC you can target just the misspelling.
If anything, I would 301 the misspelling to the main site and hope that it will bring the maine site up in the SERPs for the misspelling.
I hope that helps
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