Google's Phantom Update?

Google deployed a core algorithm update at the start of May, 2015. The searchengine from Mountain View chose not to reveal which ranking factors were changed, which is why this update is being called a Phantom Update.The Phantom update is the second unannounced update in two years, which was rolled out by Google. It can be assumed that Google is silent about the update for various reasons. Firstly, because the core algorithm is also the main component for Google’s business model. To talk about modifications would mean giving up a competitive advantage. Secondly, it is sometimes not even necessary to publish details because Google has clearly communicated in recent years about the quality of websites.
 
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