The current trend is towards mobility. This is why more and more websites are made adaptable to all types of media, including mobile devices. These new uses have pushed Google to review its natural referencing algorithm.
As mobile traffic grows exponentially, the Google search engine intends to favor "mobile friendly" sites. This indication refers to the creation of a label in the SERP (the results page of a search engine) and announces that mobile compatibility would become a relevance criterion for its algorithm. Sites optimized for all media should therefore be better ranked in Google results. This own database approach is part of a perspective of web evolution. This measure aims to encourage companies to optimize their website and offer a new user experience to their customers while addressing the issue of accessibility for all.
Apart from the accessibility aspect, it should be noted that search behaviors differ depending on the browsing media. Indeed, on mobile devices, the mobile user will spend less time than on a fixed computer, they are often very precise and know what they are looking for. When you are looking for the performance of your site, you must ensure that you respond in the best way to searches carried out on desktop and mobile. Remember that a site with optimized responsive design will always be more suitable and more effective than a site that is unreadable on mobile.