I knew this Martin Splitt laptop head-bang GIF would come in handy the day he would answer this question. Many Googlers have said over the years that user actions, such as dwell time, time on a page, and so forth at not used by Google as a search ranking factor. Martin Splitt from Google has now also said it (he may have said it before, but I never saw it)....
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Another Google Says We Don't Use User Behavior As A Ranking Factor
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