A few days ago I noticed that someone had copied my niche landing page, and put it on his own multi niche site. I also noticed that my domain is no where to be seen in the google search results anymore, and it looks like his site took my spot. How is this possible? And what can I do? I might just neg seo his domain.. If any of you have some experience with this, please let me know! And sorry if I posted the wrong place.