Day before yesterday I found out on copyscape.com that there is a 100% copy of my website online. I found out after careful analysis that someone pointed their website to my ip address using forwarding via masking which caused duplicate content issue.
My website was # 1 on Google for several keywords. I was thinking my ranking dropped to # 5 because of fluctuation due to penguin 3.0 but the main cause was duplicate content.
ACTION I TOOK: I filed a dmca complained with my hosting provider and Google. As a result hosting provider took action by bringing the website offline. On the other hand I asked my developer to redirect my website from the copied url to a 404 page.
The problem I am facing now is that my ranking dropped to #11 today. Wondering why did this happen even though the duplicate content issue is resolved.
Another doubt I have is how will Google check if duplicate content exists online because the website how was pointing to my website is offline now.
I am frustrated. It feels bad to drop to #10 after being on # 1 on Google for so long.
Can someone help ?