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Does anyone have any more information about this shift in the search rankings. For us it seemed to affect few SERPs but those it did impact were highly competitive. I have heard speculation that it had to to with whether your site was mobile friendly or not. I don't believe this to be the case however since it impacted us nagatively and we have been mobile friendly (per google's test) since a year before this update. https://moz.com/google-algorithm-change Our website has clean backlinks and all original content.