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Onsite Subdomain Linking

Discussion in 'White Hat SEO' started by Sprouts, Oct 23, 2010.

  1. Sprouts

    Sprouts Regular Member

    Joined:
    Mar 20, 2010
    Messages:
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    I have a domain and have created several subdomains and in the footer I'm linking to the other subdomains:

    e.g. my domain is:
    www.trees.com

    my subdomains are:

    www.evergreen.trees.com
    www.christmas.trees.com
    www.oak.trees.com
    www.olive.trees.com
    www.pine.trees.com

    I have about 5 of these subdomains but i'll be creating a few more every month.

    In my footer of each subdomain I'm linking to the other subdomains like this:

    PHP:
    <a href="www.evergreen.trees.com">Evergreen Trees</a>
    <
    a href="www.christmas.trees.com">Christmas Trees</a>
    <
    a href="www.oak.trees.com">Oak Trees</a>
    <
    a href="www.olive.trees.com">Olive Trees</a>
    <
    a href="www.pine.trees.com">Pine Trees</a>
    I heard that each subdomain is treated as a different website. I also heard that if sites from the same IP link to each other it's harmful to your SEO.
    Does this mean the footer links are harming all my subdomains as it my appear as a linkwheel to a GoogleBot?