GooglePenguin 4.0 is officially part of Google's Core Algorithm, according to an official statement given by Google on September 23, 2016.
Its a real time algorithm that works much faster when compared to its old versions and it affect only the webpages that contains unnatural links and not the entire website. Since it is real time, it shows a quick impact when you work to remove the unnatural links in your website.
The websites that has unnatural links, paid links or backlinks pointing to low authority domain will be affected and their search ranking will drastically drop.
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