Multiple domain names affect website SEO?

[Bucaneiro]

I have one website and i registered three domains. They're just copies (for example: mywebsite.com, mywebsite.net, mywebsite.co.jp). The main one is co.jp and the others are "parked" using the cPanel parked domains feature (they redirect to the main one). Will this affect my SEO?

 

[Zurvan]

As long as they're 301 redirected to your main domain (they should be with cPanel), then Google will treat it as a single site, and any links to the "secondary" domains will be the same as a link to the main one.

 

[Bucaneiro]

How i can make sure cPanel is redirecting with 301? And thanks for the answer.

 

[shockie]

http://www.webconfs.com/redirect-check.php

 

[bluearrow]

I think 301 is the best way of Google might deindex your other domains for duplicate content.

 

[RareIQ]

should be

 

[quyloc]

No, it doesn't effect to your SEO. however it's better if you make relevant content for those websites and leave backlinks on them

 

[kodut]

they have no effect on seo , unless the other two have been seoed ,