It’s true, the rules for online marketing are constantly changing, though this one was easy to predict. Everyone has a smartphone or tablet now, and starting April 21st Google will give more value to sites that are mobile-friendly.
That means it is time to make your site mobile friendly if you are not already. How do you know? First use Google’s Mobile Friendly Test. You should also check your site’s mobile and desktop performance with the PageSpeed Insights tool.
Hopefully you pass, but if you don’t you can connect with your web developer or take charge and do it yourself. There are plenty of resources to help online.
Mobile Friendly Development Guides