One of my sites has been slowly but steadily making its way up the ranks. I got my hands on a fairly powerful aged domain. After setting it up and linking to my website, the site went from being ranked on the second page to this: Is this a case of the serp dance? Was the domain I picked up penilized (from what I can tell, everything seemed straight when I took a look at it). This drop happened in a span of a day. What do you guys think?