Redirecting Parked Domain

[hfranz]

I just recently switched hosting. We have 3 domains and 1 being the main domain. Right now they are set up as parked domains. Can I redirect the parked domains under my main websites .htaccess file ? I am just worried that good we will get hit for duplicate content, even though technically the content is only on our main domain. right now if I type in my parked domains in Google, they appear in search.

The site is all hand coded and not using a CMS.

[858-SEO]

I don't recommend doing that, Google can see it as a black hat trick. Black Hat SEOs have been doing 301 from good ranking articles on blogs as well as 301 domains in order to boost their rankings. Are the domains you want to forward to your main site brand new (meaning you bought them the first time, not a domain that you bought after someone else had dropped it)  i ask this because if the domain has been dropped by someone else before you bought it, it could potentially have some links pointing to it that might now be from the most reputable sources and it would be EXTREMELY hard for you to know that you were penalized for a bad link to that domain since all links to the parked domain would show up as one link coming into your main site from the parked domain.

read this to get a better idea of what i mean,
http://blog.majesticseo.com/training/unnatural-links-investigations/

hope it helps