Nowadays, more and more people visit websites via their mobile devices. The use of desktop computers to do research is decreasing more and more. Therefore, operators should also offer their website as a mobile version so that their products and services are still optimally displayed and can be found in the ranking of search results.
In mobile SEO, websites are optimized for mobile devices and can be realized, for example, via a responsive design, so that the user can be offered the best user experience. The content, image format and design are thereby adapted to the respective device. The ease of use via smartphone is just important, because the user has a smaller screen and no computer mouse with its functions.
Google ranking is influenced by the mobile version. Thus, websites that are not optimized for mobile devices rank lower.