What is your view on mirror sites, how would these affect and or benefit search engine rankings. Has Google and Yahoo implemented a filter, to penalize these sites. Even if they are for legitimate reasons. For example targeting a certain search engine for a specific domain name?? Would like to hear some factual pros and cons. Feel free to dive in.


Thanks.

Hammered if its duplicate content

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Cheers Brian - Online Shop Design | Internet NI

Best bet is to noindex all your mirrored content via robots.txt.

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not true fwiw.
Pages won't get PR however, and from what I have seen in a few cases, the site won't get penalised in serps if it already holds a certain position due to other factors (IBLS, keywords in domain name etc.)

I can give examples but would rather not link to the sites in question tbh.

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Yeah I've noticed some anomolies myself. However usually Google will pick a primary domain and stick with that, while the other will have 0 or lower page rank and not really appear in SERPS for much, unless its very non-competitive category.

I guess it depends on what your trying to do and why? Multilingual sites are the only reason I would mirror content.

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