What is a “Silo Structure” and Why should you be interested
In a nutshell, it has to do with website design and internal linking strategy. Silo structuring promotes the idea of building your website with highly optimized narrow blocks of content grouped in the classical website categories, called silos.
Each of these categories will be treated like individual websites, in other words running thorough on page and off page optimization campaigns.
The end product will be one solid, authority site, sustained by its optimized individual categories and that requires a minimal number of backlinks in order to rank high in SERPs.