Today, more and more users browse the Internet using their mobile phone. In fact, according to one survey, the number of browsers using their mobile phones / tablets to access the web will exceed desktop users by end 2014.
Due to not responsive site google drop site rank also.
If your site mobile friendly then it increased the rank in google also
As the name implies, responsive websites ‘respond’ to the device accessing it. This feature make responsive website look good on all devices that access it.If your site is responsive then you don’t need to manage multiple site for multiple devices. One single site can visible on multiple devices
