Google algorithms adapted to the new user pattern; increase of the usage on mobile devices. You will find more mobile-friendly search results.
Starting April 21, 2015 Google is expanding the use of mobile-friendliness as a ranking signal.
What does this mean?
- More mobile-friendly websites in search results
- More relevant app content in the search results
Actually starting today Google will begin to use information form indexed apps as a factor in ranking for signed-in users who have the app installed. A step-by-step guide on Google’s developer site for your references.
More detailed information please read “Finding more mobile-friendly search results“