The company first started taking a site's mobile-friendliness into consideration for search past year; this latest upcoming tweak is a continuation of that effort. Google said if you are already mobile-friendly, you do not have to worry, because "you will not be impacted by this update". The company is planning a change that "increases the effect of the ranking signal" for mobile searches to put even more mobile pages on the top...
When the update happens, it will roll out gradually, so you won't see a major drop-off on non-mobile-friendly websites when the algorithm is pushed out.
Beginning in May, Google said, "We’ll start rolling out an update to mobile search results that increases the effect of the ranking signal to help our users find even more pages that are relevant and mobile-friendly".
Google believes, that going by the trends of the markets, the world of technology has completely moved forward from a PC centric world to a mobile centric world, and that the number of mobile searches is going to grow with every passing day. "You should get the best answer possible, whether you're on a phone, desktop or tablet", he wrote.
The company said the goal of the upgrade was to "help our users find even more pages that are relevant and mobile-friendly", although Google didn't specify how much of an impact it expects the change to have. Today, the company announced its mobile-friendly ranking signal is about to get stronger. The company asserted that publishers who already have a mobile-friendly website need not be concerned.
A study of consumer activity on branded sites from Q2 2014 to Q2 2015 conducted by Adobe found that organic traffic to sites with low mobile engagement fell by as much as 10 percent in the first few months following the change in Google's algorithm. Mobile-friendly sites also place links far enough apart so a user's finger can easily tap the correct one. AMP aims to make content "fast, flexible, and beautiful" and is a great way to ensure mobile-friendliness.