For those with responsive sites, then you probably don’t need to worry about anything. But those with sites such as m. sites with different URLs, or those providing different prepared to mobile customers compared to desktop customers, will have issues. Google suggests online marketers use the identical content, as well as relevant markup, on both the desktop and mobile editions of the page. The problem here is that Google wants to “support webmasters to make their content mobile-friendly.” Even if the mobile-first indexing does not affect ranking right now, Google still analyses all content in its index to determine how mobile-friendly it is.
READ Full Blog >>>>> Rolling Out Mobile-First Indexingcontinue reading →