Lately I have spotted duplicate title tags problems on my wordpress blogs, which are caused by various things. Damn those Global Translator plugin, I deactivated them all. That’s a shame, because usually I get traffic from many country because of that single plugin. But now I lose faith to them because of the duplicate title tags and duplicate content penalty from Google.
I also noticed that Google stopped visiting more than before because of this duplicate content thing. So how to spot duplicate content problems? You can use Google Webmaster Tools which is located in https://www.google.com/webmasters/
Just sign up with your google account and submit your blog sitemap and wait until Google crawl your site and reported you the duplicate content problems.
Spotting the problems is easy, so how to fix those? That’s another story.