Topic Cluster
01 Definition
Topic Cluster meaning: A group of related pages linked around one central topic to build depth and authority.
A topic cluster is a content structure with a broad pillar page on a main subject, surrounded by narrower pages covering subtopics. The subtopic pages link back to the pillar and to each other. This organization helps search engines see your coverage of a subject and helps readers navigate related content.
Also called
Why it matters
How Topic Cluster fits the work
Organizing content into clusters signals topical depth and spreads internal links logically, which can strengthen how your whole site is understood on a subject.
In context
A gardening site built a cluster with a pillar on "composting" linked to focused posts on bins, brown and green materials, and troubleshooting odors.
Practical note
A cluster only helps if each page has real, distinct value. Thin subtopic pages created just to fill a structure can cause overlap or dilute the group.