Gravatar images in WordPress sites don`t have alt and title tags, with this plugin you can resolve this problem on your site.
Install via WordPress Plugin manager, activate, refresh and after that check your source and Gravatar Images.
Contributors & Developers
“Gravatar SEO” is open source software. The following people have contributed to this plugin.Contributors
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Interested in development?
Browse the code, check out the SVN repository, or subscribe to the development log by RSS.