I noticed that I'm getting visits from 2 strange sites when I checked my blogger stats. I looked them up and apparently it is referrer spam. I'm not quite sure what it is, or what the purpose of it is. Can it cause you to lose rank for your keywords? Yesterday, I was 12th in google for one of my keywords, and today I'm not even in the top 100. Please help me. If you need to know the spam sites, please message me and I'll send them to you.