Mobile Friendly Test

Google: “Starting April 21, we will be expanding our use of mobile-friendliness as a ranking signal. This change will affect mobile searches in all languages worldwide and will have a significant impact in our search results. Consequently, users will find it easier to get relevant, high quality search results that are optimized for their devices. When it comes to search on mobile devices, users should get the most relevant and timely results, no matter if the information lives on mobile-friendly web pages or apps. As more people use mobile devices to access the internet, our algorithms have to adapt to these usage patterns.”

Google have made it easy to understand if your site will comply or not.

Simply visit

https://www.google.com/webmasters/tools/mobile-friendly/

and type in the URL of your website.

Google will quickly test your site and tell you if you pass or fail.