: SEO impact of redirecting high ranking mirror site to the main website During SEO audit for a client I noticed that they had over a dozen duplicate websites that are carbon copies of the main

@Voss4911412

Whatever you are doing is against the Google guideline. But lets jump to the answer.

The best way would be redirecting it to the main website. The only problem with this is, after redirecting your website, you will start losing SERP position for the mirror website. Google will keep only one website in the ranking. so it is better to understand which website is doing good in the organic ranking and the visitors. If you are sure that the ranking of the mirror website is not that important then add 301 redirect to complete website.

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@Odierno851

Creating multiple identical websites and linking back from them to the main website is nothing but an aggressive attempt to web spam and influence the ranks of the main website. With Google rolling out Penguin and Panda updates, it's only a matter of time that all the websites (including the primary one) is nailed by Google for a violation of their quality guidelines.

To avoid getting into such a situation, the best approach would be to 301 all the websites to the main website. To be on the safer side, I would redirect them in batches instead of all at once.

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