Penguin Changes the Top Spot Owner
The Penguin update is an innovation in the Google algorithm. With this update, the rankings of many sites have changed suddenly. The sites targeted by this update are mostly spam, duplicate, and sites with high keyword density, and those receiving backlinks from sites known as "junk sites".Reasons for Sites Dropping to Lower Ranks:
Receiving too many backlinks from junk, content-less sites, and conducting too many promotional article works,
Receiving links from unrelated sites with no similar content,
Using too many keywords or increasing keyword density,
Conducting too much backlink work in a short period,
Producing duplicate content from other sites,
Trying to create content with only titles and no substance for traffic,
Adding irrelevant and too many keywords or tags to content, among many other reasons.
What needs to be done to avoid being caught by the Penguin update and dropping to lower ranks:
Spreading backlink acquisition over a long period,
Getting backlinks from 10 quality sites instead of 100 sites.
Getting promotional articles instead of links, but not from every site, rather from sites with similar content and original content,
When acquiring backlinks, focusing on sites with quality content rather than sites with high traffic,
Using specific keywords in articles and titles, but not excessively,
Creating original content without quoting or copying. 
