Mobile optimization is serious business. In the past, it was all about having a website that performed well on desktop and placed high in SERPs. In 2015, this started shifting so digital marketers and webmasters needed to focus on desktop for search placement and user experience on both desktop and mobile.
The primary index Google used to determine the placement of a website in the past was based on the desktop version of a website.
Google’s Mobile-First Index is Here to Stay (For Now at Least)
Google is shifting its primary index website by website so the mobile version of a website is the determining factor for the placement in SERPs in both desktop and mobile search. Since they are going website by website, not all websites are shifted to this index yet. As Google determines a website is ready, they are notifying webmasters via Google Search Console. Visit Advice Local to [read more].