← Glossary

Topic cluster

What it is: a topic cluster is the set of articles on your site that cover one subject from different angles (e.g. all your "grout sealing" content). BurstWriter maps your articles, Search Console queries, and queued topics into clusters automatically, scoring each as Strong, Building, or a Gap.

Why it matters: search engines reward depth. A site with several connected articles on a subject earns topical authority and ranks more easily across the whole cluster — including for new articles you add to it.

Goal: see your entire topic universe at a glance, double down on Strong clusters, and fill Gap clusters where you get impressions but have no article.