Influential search engines like Google have changed their algorithm to favor topic-based content. As a result, SEOs are exploring a new way of linking related content under a “topic clusters” model. This report serves as a tactical primer for marketers responsible for SEO strategies.
SEO is now shifting to a topic cluster model, where a single “pillar” page acts as the main hub of content for a overarching topic and multiple content pages that are related to that same topic link back to the pillar page and to each other. This linking action signals to search engines that the pillar page is an authority on the topic, and over time, the page may rank higher and higher for the topic it covers. The topic cluster model, at its very essence, is a way of organizing a site’s content pages using a cleaner and more deliberate site architecture.
Source: HubSpot Research May 10, 2017