At the end of the day, webmasters just need to know their sites: chances are your analytics tool is more like a person than a software package, and will classify traffic in irrational ways. I’ve stumbled across website traffic originating from diverse and confusing sources being classed as direct — often requiring a considerable amount of thought and exploration to work out what is happening.
It increases relevancy: Siloing ensures all topically related content is connected, and this in turn drives up relevancy. For example, linking to each of the individual yoga class pages (e.g. Pilates, Yoga RX, etc) from the “Yoga classes” page helps confirm—to both visitors and Google—these pages are in fact different types of yoga classes. Google can then feel more confident ranking these pages for related terms, as it is clearer the pages are relevant to the search query.
Note: Google made a change a few years ago to how they track keywords and it has had a big impact on the discovery process. Before the change, Google would show which keywords consumers were using to find your website, making it easy to understand where and how your website was ranking. Google changed their tracking system so that any users who are logged into a Google account while searching will no longer have their keywords tracked as their Google activity remains encrypted. Due to this, when looking at Organic Traffic reports you will see (not provided) as a keyword throughout the reports – this often makes up over 90% of organic traffic and requires us to dig a bit more creatively to find what we need.