Did you know that over 50% of all Internet traffic comes from mobile devices rather than computers? For businesses with online marketing, that means failing to optimize their marketing materials for mobile will cause them to miss out on the majority of their audience. As devices like smartphones and tablets have grown more and more dominant in people's daily lives, it's become more and more important to optimize websites for them. It's become so important, in fact, that Google's shifted over entirely to mobile-first indexing.

Mobile-first indexing is vital to be aware of because failing to optimize for it could hurt your rankings in Google. But what is mobile-first indexing, and what can you do to prepare for its effects? We'll answer both of those questions