: Disable outbound links without letting others know that Is there a way I can tell google not to follow external links ( pointing to other sites) without letting other know. I know you can

@Angela700

To me it sounds as if you want to allow people to post linking under the impressions they are followed. Yet when Google comes to your site you want them not followed. To do this you would have to write a program to monitor user agents. When Google arrives all links by users would get nofollow. You would not reasonably be able to monitor by IP since Google uses so many. Now the problem is people can set a user agent and check how your site looks when Google visits it. I don't see anything good with what you want to do but it is possible.

if (strpos($_SERVER['HTTP_USER_AGENT'], 'Googlebot') !== false)
{
// It's Googlebot, set nofollow on my links
}

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@Kaufman445

Here's the perfect solution; prevent your users from using your site as a link farm. Without some morally questionable techniques and things that could sink your PR like the Titanic (But faster), the only way to not have your site flagged as a link farm is to not be a link farm.

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