So I created a site a couple of months back. It's a partial EMD (www onlinekeyword) and I've been using the keyword 1-2 times per article. I've got about 10 articles of 500 words each. Except for a few social media links, the site only got 4 backlinks (from my own PBN), with anchor text containing two URL, one exact match and one partial match. The site got to about spot 40 in SERPs for a couple of weeks, and now when I checked it's 200. Google Webmaster Tools says nothing about a penalty, all PBN sites are still indexed and I've written all content manually myself. So how is this even possible? I can't see how the on-page stuff would be over-optimized and it's only 4 backlinks. Anyone got an idea what this could be? I know the rank wasn't very good to start with, but now I don't know if I should drop the site all together or keep chipping away at it.