What Topical Authority Cluster Builder does
This tool takes a raw, unsorted list of keywords and groups them into clusters based on shared core terms, organized as a hub-and-spoke model: a main "hub" topic with related "spoke" keywords underneath it. It's a quick way to turn a messy keyword export into the shape of a content structure, where one pillar page can link out to several supporting pages.
How to build keyword clusters
- Paste your keyword list, one phrase per line.
- Select Build clusters.
- Review the groups — each cluster shows a hub term with its related spoke keywords listed underneath.
How the grouping works
Keywords are grouped by the meaningful words they share once common stop words and filler terms are stripped out. Phrases with overlapping core words — like "marathon training plan" and "marathon training for beginners" — land in the same cluster, while unrelated phrases form their own groups. It's a pattern match on shared vocabulary, not an understanding of search intent, so it's worth a quick manual review before building a content plan from the output.
Turning clusters into content
- Hub term → a broad pillar page covering the topic comprehensively.
- Spoke keywords → supporting pages or sections that go deeper on one angle, each linking back to the hub.
- Isolated single-keyword clusters → often signal a keyword too narrow for its own page, better folded into a related cluster.