Best practice for duplicate website content: same root domain name but different extension

[turnbullholdingsltd]

Hi there

I have a new client who has two websites:

http://www.bayofislandsteambuilding.co.nz
http://www.bayofislandsteambuilding.org.nz

They are the same in every regard apart from the domain extension (.co.nz & .org.nz) which is likely to be causing them issues with Google ranking given the huge amount of duplicate content.

What is the best practice approach to fixing this? Normally, if I was starting from scratch, I would set one of the extensions as an alias which redirects to the main domain.

Thanks in advance.

Laurie

[jesse-landry]

301 Redirect one to the other. That's it that's all.

[turnbullholdingsltd]

Hi - thanks for the response.

Do I still need to set up 301 redirects for every page or can I do it server-side for the entire domain? And is this approach better than using the rel=”canonical” link element in the http header tags?

Thanks

L

[MoosaHemani]

Two URLs containing the same content will be considered as duplicated content, do the domain level redirection so that every URL should redirect to the home page of the preferred domain.