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We have recently rolled out a web content filter. I have noticed on many users even though these users are not going to this site, nor have any program loaded that would connect to this site.

Anybody know why this would be showing up. Some google searching has mentioned possibly being attached to emails.

However, at this point, it isn't making sense.

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Yes, that makes sense. Thank you... – jherlitz May 8 '09 at 15:57
up vote 6 down vote accepted

If your users are frequenting sites who use Gravatar as their avatar provider, like StackOverflow or ServerFault, you'll see a flurry of requests to

Each question and answer generates a hit for the user profile back to gravatar.

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Just to clarify, OpenID has nothing to do with Gravatars. – user1797 May 8 '09 at 16:18
thanks David, modified my answer. I created the mental association somehow, and I misspoke. – p.campbell May 8 '09 at 20:27

Serverfault and Stackoverflow both use gravatar as their avatar providers.

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Weblogs and sites they are reading uses plugins or query with APIs the website. For example, does.

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