What about sites that redirect to a mobile subdomain? Will they be considered mobile-friendly?

This is an interesting question, because immediately after the roll-out of the Mobile-Friendly tagging, we actually saw significantly more mDot (‘m.’) websites ranking well in the mobile SERPS. It’s almost like they counted the mobile subdomain as a Mobile-Friendly signal, but started the algorithm fresh, with no historical data to indicate which other sites had fewer obvious signals of mobility, like a responsive design, or an adaptive or dynamically served mobile site. It is also interesting to note that many of the Google representatives seem to have recently backed off of their strong insistence on responsive design. They still say that it is the least error-prone, and easiest to crawl and index, but they also now seem to be more willing to acknowledge the other viable mobile site architectures.


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