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Is there any way to check whether the user has an SEO plugin installed, so as if they do not I can insert my metas etc.

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up vote 2 down vote accepted

Hi @Liam:,

What you are going to need to do is create a list of the top SEO plugins and themes and then document how each implements meta and develop a strategy for each. And/or maybe you can ask your users upon activation if they are using an SEO plugin much like Akismet asks users to enter an API key.

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Aha, good idea. And I can add an option to disable my theme's SEO functionality. – Liam Bailey Feb 4 '11 at 9:28
@Liam Bailey: Glad I could help! – MikeSchinkel Feb 4 '11 at 11:59

You can check for specific plugin(s), for example with is_plugin_active() function.

But there is no way to check for SEO plugin in general, at least not in any kind of reliable way.

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