What is a topic cluster?
Definition
A topic cluster is a group of related pages on one subject, a pillar page plus detailed subtopic pages, all connected with internal links.
Why it matters
Clusters show depth on a subject and help search engines and AI systems connect related answers across your site.
How to do it
- Pick a core topic and its pillar page.
- Create a page for each important subtopic or question.
- Link every page to the pillar and to closely related pages.
Example
AgentMio's glossary works as a cluster: each term links to related terms, the index and the matching feature page.
FAQ
How many pages make a cluster?
There's no set number. Cover the subtopics your audience actually asks about.