Google has published its official advice on getting ready for the mobile-first search index, a transition which is expected to roll out more broadly in early 2018.
The mobile-first index has already begun to roll out slowly to individual sites that are ready for it, as Google has previously confirmed. What does it mean to be “ready,” exactly?
Google’s Gary Illyes explains how to ensure a site is ready for mobile-first indexing. Sites that utilize responsive web design and dynamic serving do not have to make any changes. Beyond that, here is Google’s official advice.
Google will be evaluating sites individually on whether or not the above criteria is met. When the requirements are met, then a site can be transitioned to the mobile-first index.
The search giant is making a deliberate effort not to rush out mobile-first indexing. Google believes that taking it slow will allow more webmasters to prepare and ultimately provide a better experience for mobile search visitors.
With that said, there is no timeline in place for when mobile-first indexing will be fully rolled out. Google previously stated it was aiming for the transition to be completed in early 2018, but now it sounds like it could take longer if needed.