A content cluster is a group of pages on one topic, all linked around a central "pillar" page.
The pillar covers the broad topic; the cluster pages each answer a specific sub-question and link back to it. Together they signal deep expertise on the whole subject.
In short: One hub page plus a ring of related pages, all linked together.
Why it works
- Topical authority. Depth across a topic beats one-off posts.
- Better linking. Internal links spread relevance and help crawling.
- Full coverage. You answer more of the ways people actually search.
How to build one
- Pick a pillar. Choose a broad topic you want to own.
- Map sub-topics. Turn real questions into cluster pages.
- Link both ways. Connect every cluster page to the pillar and back.
Frequently asked questions
What is a pillar page?
The hub of a cluster: a broad, comprehensive page on the main topic that links out to each cluster page covering a specific sub-topic.
How big should a content cluster be?
Start with a pillar plus three or four strong cluster pages, then expand over time. Depth and good internal linking matter more than sheer count.
Why do content clusters help SEO?
They show deep coverage of a topic, which builds topical authority, and the internal links spread relevance and help Google crawl the whole set.