As more and more mobile devices are taking over the searches from desktops, Google has announced that come May 2016, it will be an increased ranking factor.
It would be wise to check yourself before the update happens. We’re sure to see a good shuffle in rankings if you’re not ready. If you need more information about making your site mobile friendly, head over to Google’s mobile guidelines.
Here’s a video from Barry Schwartz that should be of interest.