Websites need to be mobile-friendly nowadays. The best way to achieve this is through responsive design.  This is important for your user and the Google Bot. Since Mobilegeddon, it s just a fundamental requirement to have a website that works well on mobile.  You need to be 100% sure that your website is mobile-friendly.  Please click here to test your website.   This check will tell you exactly what you need to do to improve your websites appearance and user experience on mobile phones.