Something weird happened over the last 1 week. My website (created around March 2016), was steady in rankings since May to early july. I stopped all link building activities on May approx and have not touched the site ever since. I even removed 2 301 redirect expired domains from my website. But this week I saw a significant increase in my keywords, some jumping 30-90 positions. It is in a noncompetitive KW(s). Did anyone else experience something like this? What could be the possible reason? I was thinking that Google might have placed a "Ranking Restriction" on newer websites, and 4-5 months was the time whereby they removed this restriction.