Today, Google announced some very important changes to it’s algorithm and it’s a wake up call for late adopters of responsive web design. Google will be giving preferred service to mobile users, and content on responsive websites will be favored in search results. For the moment, it influences search rankings on mobile but not rankings on desktop. Rumours indicate that mobile-friendliness will impact desktop rankings down the road.
Starting on April 21, mobile-friendliness will be an important ranking consideration for mobile search results and indexed apps will have priority in search results for users who are already signed into those apps.